basic electricity 10 hour - part 1 student workbook · basic electricity (10 hour) - 71.14 student...

Basic Electricity10 Hour - Part 1Student Workbook

Issue: US140/10/2a-IQ-0402A

Copyright 2004, LJ Technical Systems. No part of thisPublication may be adapted or reproduced in any material form,without the prior written permission of LJ Technical Systems.

Written by: LJ Technical Dept

Basic Electricity (10 hour) - 71.14 Student Workbook

LJ Technical Systems SW1.1

Assignment 1 Producing Electricity

Label the parts of the Basic Electricity trainer.

Write down different methods of producing electricity.

1) .........................................................................................................................................................................

2) .........................................................................................................................................................................

3) .........................................................................................................................................................................

4) .........................................................................................................................................................................

5) .........................................................................................................................................................................

6) .........................................................................................................................................................................

7) .........................................................................................................................................................................

8) .........................................................................................................................................................................



Assignment 2 Electrical Safety

Write down the safety tips for staying safe while working with electricity.

1) .........................................................................................................................................................................

2) .........................................................................................................................................................................

3) .........................................................................................................................................................................

4) .........................................................................................................................................................................

5) .........................................................................................................................................................................

6) .........................................................................................................................................................................

Write down your score for the Yard and Workplace environments.

Yard Score = .................................................

Workplace Score = .......................................

Assignment 3 The Electrical Switch

Sketch the room lighting circuit in the space provided.



Describe how the room lighting circuit operates...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

Car horn circuit

Battery

Push-to-makeswitch

Horn

12V

Describe how the car horn circuit operates...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

Draw the schematic diagram of the room lighting circuit and the circuit symbols in thespace provided.



Complete the block diagram of the lamp circuit.

Assignment 4 Connecting Electrical Devices in Series

On the following diagrams, complete the current readings at the positions indicated.

6V

amps amps

amps

amps

Lamp 1 Lamp 2



6V

amps amps

amps

amps

Lamp 1 Lamp 2

6V

Enter the current readings at the positions indicated on the diagram below with theswitches closed.

1.3 _ 1.4

1.1 + 1.2

+ -

B16V

BATTERIES LAMPS

1.19

1.21

S1

SWITCHES

1.15

S2

S31.22

1.16

1.201.17 1.18

1.13 1.14

1.23 1.24

PUSH TO BREAK

CLOSED

1.47 1.48

1.49 1.50

1.51 1.52

1.45 1.46

1.7 _ 1.8

1.5 + 1.6

+ -

B26V

LP1

LP2

OPEN 1.53 1.54

1.55 1.56

LP3

PUSH TO MAKE

1.25S4

1.26 1.27 1.28

CLOSED

OPEN

1.29S5

1.30

1.31 1.321

2

1.33 1.34

AA

A

A

mA mA

mA

mA



Complete a description of current in a series circuit.

Current through a series circuit ...........................................................................................................................

.............................................................................................................................................................................

.............................................................................................................................................................................

.............................................................................................................................................................................

Assignment 5 Voltage

Complete the voltage readings for the following circuit:

volts

volts

volts volts

Lamp 1 Lamp 2

6V



Complete the voltage readings for the following circuit.

volts

volts

volts volts

6V

Lamp 1 Lamp 2

6V

Complete the voltage readings for the following circuit with the switches closed.

1.3 _ 1.4

1.1 + 1.2

+ -

B16V

BATTERIES LAMPS

1.19

1.21

S1

SWITCHES

1.15

S2

S31.22

1.16

1.201.17 1.18

1.13 1.14

1.23 1.24

PUSH TO BREAK

CLOSED

1.47 1.48

1.49 1.50

1.51 1.52

1.45 1.46

1.7 _ 1.8

1.5 + 1.6

+ -

B26V

LP1

LP2

OPEN 1.53 1.54

1.55 1.56

LP3

PUSH TO MAKE

1.25S4

1.26 1.27 1.28

CLOSED

OPEN

1.29S5

1.30

1.31 1.321

2

1.33 1.34

volts

volts

volts

volts

(Vt)

(V2)

(V1)



Complete the formula for circuit voltage.

Voltage Total = Voltage 1 + Voltage 2

Vt = V1 + V2

____ = _____ + _____

Complete a description for voltage in a series circuit.

The sum of voltages around a series circuit ........................................................................................................

.............................................................................................................................................................................

.............................................................................................................................................................................

.............................................................................................................................................................................



Assignment 6 Energy Transfer in Electrical Systems

Specify the voltage readings on the desk fan circuit.

Desk fan circuit

12V 12V

Variableresistor(10 ohms)

Motor (fan)

Voltage

Voltage

Complete the block diagram of electrical energy transfer.



Assignment 7 Connecting Electrical Devices in ParallelParallel circuit with 2 branches

6V

Switch 1

Switch 2 Lamp 2

Lamp 1

Complete the table to show lamps working in parallel.

SWITCH 1 SWITCH 2 LAMP 1 LAMP 2OPEN OPEN OFF OFFOPEN CLOSEDCLOSED OPENCLOSED CLOSED



Parallel circuit with broken link

6V

Switch 1

Switch 2 Lamp 2

Lamp 1

Complete the table to show lamps working in parallel with a broken link.

SWITCH 1 SWITCH 2 LAMP 1 LAMP 2CLOSED CLOSED

Christmas lights circuit

6V

RedYellow

BlueRed

YellowBlue

RedYellow

BlueRed

Yellow



Complete the diagram to show a parallel circuit.

1.3 _ 1.4

1.1 + 1.2

+ -

B16V

BATTERIES LAMPS

1.19

1.21

S1

SWITCHES

1.15

S2

S31.22

1.16

1.201.17 1.18

1.13 1.14

1.23 1.24

PUSH TO BREAK

CLOSED

1.47 1.48

1.49 1.50

1.51 1.52

1.45 1.46

1.7 _ 1.8

1.5 + 1.6

+ -

B26V

LP1

LP2

OPEN 1.53 1.54

1.55 1.56

LP3

PUSH TO MAKE

1.25S4

1.26 1.27 1.28

CLOSED

OPEN

1.29S5

1.30

1.31 1.321

2

1.33 1.34

Complete the table to show lamps working in parallel.

SWITCH S3 SWITCH S4 LAMP LP1 LAMP LP2OPEN OPENOPEN CLOSEDCLOSED OPENCLOSED CLOSED

Assignment 8 Measuring Currents in Parallel andSeries Circuits

Draw the circuit diagram and schematic diagram of the parallel circuit.



Complete the table to show current readings from around the parallel circuit.

SWITCH 1 SWITCH 2 CURRENT1

CURRENT2

CIRCUITCURRENT

OPEN OPENOPEN CLOSEDCLOSED OPENCLOSED CLOSED

Draw the circuit diagram and schematic diagram of the branching parallel circuit.

Complete the table to show current readings from around the branching parallel circuit withthe switch closed.

CURRENT 1 CURRENT 2 CURRENT 3 CIRCUITCURRENT



Complete the diagram with current readings at positions � to �.

9V

1

2

3

4

56

7

8

9

1

2

3

4

5

6

7

8

9

Complete the table to show current readings from around a parallel circuit.

SWITCH S3 SWITCH S4 CURRENT(A1)

CURRENT(A2)

CIRCUITCURRENT

OPEN OPENOPEN CLOSEDCLOSED OPENCLOSED CLOSED

Write a conclusion about current flow around a parallel circuit..............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................



Assignment 9 Measuring Voltage in a Parallel Circuit

Complete the diagram with the voltage measurements with the switches closed and open.

6V

volts

volts volts

volts

Switch 2

Switch 1

Lamp 2

Lamp 1

6V

volts

volts volts

volts

Switch 2

Switch 1

Lamp 2

Lamp 1

Switches closed Switches open

Series Circuit

6V



Complete the diagram with the voltage measurements.

1.3 _ 1.4

1.1 + 1.2

+ -

B16V

BATTERIES LAMPS

1.19

1.21

S1

SWITCHES

1.15

S2

S31.22

1.16

1.201.17 1.18

1.13 1.14

1.23 1.24

PUSH TO BREAK

CLOSED

1.47 1.48

1.49 1.50

1.51 1.52

1.45 1.46

1.7 _ 1.8

1.5 + 1.6

+ -

B26V

LP1

LP2

OPEN 1.53 1.54

1.55 1.56

LP3

PUSH TO MAKE

1.25S4

1.26 1.27 1.28

CLOSED

OPEN

1.29S5

1.30

1.31 1.321

2

1.33 1.34

volts

volts

Write a conclusion about voltage measurements across parallel branches of a circuit. ........................................................................................................................................................................................................................................................................................................................... .

Assignment 10 Electrics for an Aquarium

Complete the table with measurements from your experimentation.

Component Required Voltage (V) Measured Voltage (V)LampHeaterMotor



Complete the diagram with your correct working circuit.

1.3 _ 1.4

1.1 + 1.2

+ -

B16V

BATTERIES LAMPS

1.19

1.21

S1

SWITCHES

1.15

S2

S31.22

1.16

1.201.17 1.18

1.13 1.14

1.23 1.24

PUSH TO BREAK

CLOSED

1.47 1.48

1.49 1.50

1.51 1.52

1.45 1.46

1.7 _ 1.8

1.5 + 1.6

+ -

B26V

LP1

LP2

OPEN 1.53 1.54

1.55 1.56

LP3

PUSH TO MAKE

1.25S4

1.26 1.27 1.28

CLOSED

OPEN

1.29S5

1.30

1.31 1.321

2

1.33 1.34

GENERATOR / MOTOR1.9 1.10

1.11 1.12

HEATER AND THERMOSTAT

1.79 1.80

1.81 1.82

1.77 1.78

1.83 1.84

1.85 1.86

basic electricity 10 hour - part 1 student workbook · basic electricity (10 hour) - 71.14 student...

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