Ohm's Law NDA Questions

NDA Physics

Ohm's Law MCQ Questions


7.
Ohm is denoted by the symbol
A.
π
B.
Ω
C.
θ
D.
λ
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ANSWER :
B. Ω
8.
Which of the following is a limitation of Ohm's law?
A.
Does not apply for unilateral elements
B.
Does not apply for non-linear elements
C.
VI is not constant for elements like capacitance
D.
All of the above
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ANSWER :
D. All of the above
9.
In a water pipe analogy, voltage in Ohm's law is similar to
A.
Water
B.
Water pressure
C.
Pipe
D.
Both b and c
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ANSWER :
B. Water pressure
10.
Which of the following represents the value of resistance in a water pipe analogy?
A.
Pipe
B.
Pressure applied
C.
Size of pipe
D.
Direction of water
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ANSWER :
C. Size of pipe
11.
Identify the value of current when voltage is 9V and total resistance is 12 ohms
A.
0.5A
B.
1A
C.
1.5A
D.
0.75A
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ANSWER :
D. 0.75A
12.
Ohm's law can be defined as
A.
V = It
B.
V = If
C.
V = IR
D.
V = I/R
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ANSWER :
C. V = IR