electric current and ohm's law _ fill in the blanks_answer

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6/10/2014 Electric Current and Ohm's Law : Fill in the Blanks http://www.electricalquizzes.com/electric-circuits/electric-circuits-fill-blanks 3/6 1. A fuse wire should be of material that has __________ resistivity and __________ melting points. Get Answer High , Low 2. Illuminating power decreases by__________ when current drops of 20%. Get Answer 36% 3. A pot. difference of V is applied across a resistor of length L and diameter D. If diameter D is halved, v __________. Get Answer No Change 4. A wire having resistance of 1 ohm is bent through 180 and twisted, the resistance is__________ ohms. Get Answer 0.25 5. 100 watt lamp has__________ resistance than a 40 watt lamp. Get Answer Lesser 6. Resistivity of mercury at 4 K is__________. Get Answer Zero d o

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Page 1: Electric Current and Ohm's Law _ Fill in the Blanks_Answer

6/10/2014 Electric Current and Ohm's Law : Fill in the Blanks

http://www.electricalquizzes.com/electric-circuits/electric-circuits-fill-blanks 3/6

1. A fuse wire should be of material that has __________ resistivity and __________ melting points.

Get Answer

High , Low

2. Illuminating power decreases by__________ when current drops of 20%.

Get Answer

36%

3. A pot. difference of V is applied across a resistor of length L and diameter D. If diameter D is halved, v __________.

Get Answer

No Change

4. A wire having resistance of 1 ohm is bent through 180 and twisted, the resistance is__________ ohms.

Get Answer

0.25

5. 100 watt lamp has__________ resistance than a 40 watt lamp.

Get Answer

Lesser

6. Resistivity of mercury at 4 K is__________.

Get Answer

Zero

d

o

Page 2: Electric Current and Ohm's Law _ Fill in the Blanks_Answer

6/10/2014 Electric Current and Ohm's Law : Fill in the Blanks

http://www.electricalquizzes.com/electric-circuits/electric-circuits-fill-blanks 4/6

← Electric Circuit > True-False Page 1 (/electric-circuits/electric-circuits-true-false.htm)

7. A wire of length 10 m and radius 1 mm has a resistance of 2 ohms. Length of wire of same material having radius 2 mm has

resistance of 2 ohm is__________.

Get Answer

40m

8. If two bulbs of different powers are joined in series, then bulb of__________ wattages glows brighter.

Get Answer

Lower

9. If two bulbs of different powers are joined in parallel, then bulb of __________wattages glows brighter.

Get Answer

Higher

10. An electric bulb rated as 500 watt-100 volts is to be lighted on a 200 volt supply. Series resistance needed to deliver 500 watt

is__________.

Get Answer

20 Ohm

Get all answers at once

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