basic : microprocessors & electrom agne tic fields - …
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BASIC : MICROPROCESSORS & ELECTROMAGNETIC FIELDS - REPORTS
Devansh RaghuwanshiCourse: GATE+ESEElectrical Engineering (EE)
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Q. 1
Have any Doubt ? Solution VideoFAQWhich one of the following signals can be used to demultiplex the address bus and data bus of an 8085 microprocessor?
A
B
Solution :(c)
ALE (Address Latch Enable) is used to demultiplex the address bus and data bus.
C ALECorrect Option
D READY
QUESTION ANALYTICS
Q. 2
OVERALL ANALYSIS COMPARISON REPORT SOLUTION REPORT
ALL(33) CORRECT(0) INCORRECT(0) SKIPPED(33)
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Q. 2
Have any Doubt ? Solution VideoFAQThe addressing mode of the instruction “PUSH” is
A Direct Addressing Mode
B Register Addressing Mode
Solution :(c)
C Register Indirect Addressing ModeCorrect Option
D Implied Addressing Mode
QUESTION ANALYTICS
Q. 3
Have any Doubt ? Solution VideoFAQ
Consider the following program in an 8085 based system, along with the subroutine TEST:
After execution of the above program, the content of the accumulator will be equal to
A 02H
B FFHCorrect Option
Solution :(b)
C FEH
D 20H
QUESTION ANALYTICS
Q. 4
Have any Doubt ? Solution VideoFAQ
In an 8085 microprocessor, which one of the following is the correct sequence of the machine cycles for the execution of the“INR M” instruction?
A opcode fetch
B opcode fetch, memory read
C opcode fetch, memory write
Solution :(d)
“INR M” is a one byte instruction, so fetch. But memory content should be incremented and stored, so read and write are
D opcode fetch, memory read, memory writeCorrect Option
required.
QUESTION ANALYTICS
Q. 5
Have any Doubt ?FAQDuring the execution of “HLT” instruction in an 8085 microprocessor, which of the following flags will be effected?
A Carry flag, Sign flag
B Sign flag, Zero flag
C Auxiliary carry flag, Zero flag
Solution :(d)
D No flagsCorrect Option
QUESTION ANALYTICS
Q. 6
Have any Doubt ? Solution VideoFAQIf the initial address of a 4K × 8 memory is 4000H, then the address of the last byte will be equal to
A 3FFFH
B 4FFEH
Solution :(c)
C 4FFFHCorrect Option
D 5FFFH
QUESTION ANALYTICS
Q. 7
Have any Doubt ? Solution VideoFAQThe units of where is vector magnetic potential, is given by:
A
B
C
D
Correct Option
Solution :(d)
QUESTION ANALYTICS
Q. 8
Have any Doubt ? Solution VideoFAQ
The point is converted in cylindrical coordinates is given by:
A
B
C
D
Correct Option
Solution :(d)
QUESTION ANALYTICS
Q. 9
Have any Doubt ? Solution VideoFAQ
The values of constants a, b and c so that is irrotational, is given
by
Solution :(a)
A a = 4, b = 2, c = –1Correct Option
B a = 3, b = 2, c = 2
C a = 4, b = –2, c = 1
D a = 3, b = 2, c = –2
QUESTION ANALYTICS
Q. 10
Have any Doubt ? Solution VideoFAQ
The divergence of the following vector field at the given point is given by
Solution :(a)
A –1Correct Option
B 2
C –2
D 1
QUESTION ANALYTICS
Q. 11
Have any Doubt ?FAQ
The time required for the execution of the instruction “LDA 2017H” in an 8085 microprocessor operating with a clock frequencyof 2 MHz is _____ μsec.
Solution :6.50 (6.40 - 6.60)
6.50 (6.40 - 6.60)Correct Option
( )
QUESTION ANALYTICS
Q. 12
Have any Doubt ?FAQ
The total number of memory accesses involved (including op-code fetch) when an 8085 microprocessor executes theinstruction “LHLD 2017H” is ______.
Solution :5Total 5 memory accesses are required:
1. Opcode fetch 2. Memory read (to read 17H)
3. Memory read (to read 20H) 4. Memory read (to read data from 2017H)
5. Memory read (to read data from 2018H)
5Correct Option
QUESTION ANALYTICS
Q. 13
Have any Doubt ? Solution VideoFAQ
For x, y, z positive, let volume charge density; ρv = 40 xyz c/m3. The total charge contained within the region defined by:0 ≤ x, y,z ≤ 2 is given by ________ Coulombs.
320
Solution :320
320Correct Option
QUESTION ANALYTICS
Q. 14
Have any Doubt ? Solution VideoFAQ
Consider square loop of length ‘a’ through which a current of 2 Amp is passing in clockwise direction as shown in figure. The
magnetic field at the centre of square loop is given as; ________ A/m.
Solution :45.02 (44.70 - 45.30)
45.02 (44.70 - 45.30)Correct Option
QUESTION ANALYTICS
Q. 15
Have any Doubt ? Solution VideoFAQ
The magnetic flux density at the centre of a current carrying loop when radius of the loop is 2 m, loop current of 1 mA, and loopis placed in air, is ________ × 10–9 Wb/m2. (Answer upto 3 digits after decimal.)
Solution :0.314 (0.300 - 0.330)
0.314 (0.300 - 0.330)Correct Option
QUESTION ANALYTICS
Q. 16
Have any Doubt ? Solution VideoFAQ
A lossy dielectric has μr = 1 and εr = 1, σ = 2 × 10–8 S/m. An electric field ������� ��� V/m is applied to the
dielectric. At _________ Hz frequency the conduction and displacement current densities are equal.
Solution :360 (355 - 365)
360 (355 - 365)Correct Option
QUESTION ANALYTICS
Q. 17
How many times the “LOOP” will be executed in the following program of an 8085 microprocessor?
Have any Doubt ?FAQ
A 6
Solution :(b)
B 7Correct Option
C 8
D Infinite
QUESTION ANALYTICS
Q. 18
Have any Doubt ?FAQ
In an 8085 microprocessor system, the active low chip select signal is generated by using address lines A15, ⋅ ⋅ ⋅ , A10 anda 6 input NAND gate. For selecting the address range CC00H to CFFFH, the inputs to the NAND gate should be
A
B
Solution :(c)
C
Correct Option
D
QUESTION ANALYTICS
Q. 19
Have any Doubt ?FAQ
To mask RST 5.5, RST 6.5 and to send logic1 on Serial Output Data (SOD) pin of an 8085 microprocessor, the data required inthe accumulator (A) before execution of “SIM” instruction should be equal to
A ABH
B ACH
B C
Solution :(c)
C CBHCorrect Option
D BCH
QUESTION ANALYTICS
Q. 20
Have any Doubt ?FAQAn instruction that can be used to complement each bit of the accumulator is
A ANI F0H
B ANI 0FH
C XRI 0FH
Solution :(d)
D XRI FFHCorrect Option
QUESTION ANALYTICS
Q. 21
Have any Doubt ?FAQ
Consider the following statements regarding an 8085 microprocessor system with I/O mapped I/O: 1. I/O devices have 16-bit address.
2. I/O devices are accessed using IN and OUT instruction. 3. There can be a maximum of 256 input devices and 256 output devices.
4. Arithmetic and logic operations can be directly performed with the I/O data. Which of the above statements are correct?
A 1 and 4 only
B 1 and 3 only
Solution :(c)
In I/O mapped I/O, I/O has 8 bit address and 28 = 256.
C 2 and 3 onlyCorrect Option
D 2 and 4 only
QUESTION ANALYTICS
Q 22
Q. 22
Have any Doubt ?FAQ
The range of address that can be used to access the memory (RAM) in the below figure is
Solution :(a)
A 6000H to 7FFFHCorrect Option
B 6000H to 7FFEH
C E000H to EFFFH
D E000H to EFFEH
QUESTION ANALYTICS
Q 23
Q. 23
Have any Doubt ? Solution VideoFAQ
Three point charges are located at the corners of an equivalent triangle of50 cm side as shown in figure. The magnitude and direction of force on q3 is,
A
B
Solution :(c)
CCorrect Option
D
QUESTION ANALYTICS
Q. 24
Have any Doubt ? Solution VideoFAQ
Point charges of 120 nC each are located at A (0, 0, 1) and B (0, 0, –1) in free space. The electric field intensity at point P(0.5, 0,0) is given by
Solution :(a)
ACorrect Option
B
C
D
QUESTION ANALYTICS
Q. 25
Have any Doubt ? Solution VideoFAQ
Two point charges –4 μC and 5 μC are located at (2, –1, 3) and (0, 4, –2) respectively. The potential at (1, 0, 1) assuming zeropotential at infinity is;
A 4.85 kV
B –4.85 kV
C 5.87 kV
Solution :(d)
D –5.87 kVCorrect Option
QUESTION ANALYTICS
Q. 26
Have any Doubt ? Solution VideoFAQ
If scalar potential is given by:
then electric field at (2, 30°, 60°) is given by:
A
C O i
Solution :(a)
Correct Option
B
C
D
QUESTION ANALYTICS
Q. 27
Consider the following program of an 8085 microprocessor, operating at 2 MHz clock frequency:
Have any Doubt ?FAQ
Solution :35
35Correct Option
QUESTION ANALYTICS
Q. 28
Consider the following 8085 assembly language program:
Have any Doubt ?FAQ
Solution :146
146Correct Option
QUESTION ANALYTICS
Q. 29
Have any Doubt ? Solution VideoFAQ
Let electric field (V/m) in the neighborhood of point P (6, 2 –3). The incremental work done in
moving a 4 Coulombs charge at distance of 1 mm in the direction specified by; is given by, _________ Joules.
Solution :-1.39 (-1.45 - -1.33)
-1.39 (-1.45 - -1.33)Correct Option
QUESTION ANALYTICS
Q. 30
Have any Doubt ? Solution VideoFAQ
A potential function is V = (2x + 4y) volts is in free space. The stored energy in free space in the 1 m3 volume centered at originis ________ × 10–12 Joules.
Solution :88.4 (88.0 - 89.0)
88.4 (88.0 - 89.0)Correct Option
QUESTION ANALYTICS
Q. 31
Have any Doubt ? Solution VideoFAQ
For the capacitor shown in the figure, the value of εR1 is ________ if εR2 = 2.5 and the total capacitance is 60 nF.
Solution :3.988 (3.900 - 4.050)
3.988 (3.900 - 4.050)Correct Option
QUESTION ANALYTICS
Q. 32
Have any Doubt ? Solution VideoFAQ
The magnitude of the displacement current through a parallel plate air filled capacitor having plate area of 10 cm2 andseparated by a distance of 2 mm is ________ × 10–3 A. While the supply voltage is 300 volts (sinusoidal) at 1 MHz frequency.
Solution :8.34 (8.20 - 8.50)
8.34 (8.20 - 8.50)Correct Option
QUESTION ANALYTICS
Q. 33
Have any Doubt ? Solution VideoFAQ
An iron ring or toroid, 0.2 m in diameter and 10 sq. cm. sectional area of the core is uniformly wound with 250 turns of wire. Ifthe flux density in the core is to be 1 Tesla and = 500, then the energy stored in the inductor is ________ Joules.
Solution :0.5 (0.40 - 0.60)
0.5 (0.40 - 0.60)Correct Option
QUESTION ANALYTICS