2nd Year Physics Chapter 16 Online MCQ Test for 12th Class Physics Chapter 16 (Alternating Current)

ICS Part 2 Physics
Chapter 16 Test

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MCQ's Test For Chapter 0 "Physics ICS Part 2 Chapter 16 Online MCQ's Test"

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Physics ICS Part 2 Chapter 16 Online MCQ's Test

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Question # 1

when an inductor comes close to a metallic object, its inductance is.

Question # 2

In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.

Question # 3

In frequency modulation which factor changed.

Question # 4

The reactance is the ratio of

Question # 5

In metal detector, we use.

Question # 6

For electromagnetic waves, Maxwell generalized

Question # 7

Unit of impedance is:

Question # 8

The mean value of A.C. in a cycle is.

Question # 9

Power dissipated in a pure inductor is.

Question # 10

An electromagnetic wave goes from air to glass which of the following does not change?

Question # 11

The internal resistance of a capacitor is called:

Question # 12

Electron vibrating 94,000 times each second will produce radio waves of frequency.

Question # 13

The main use of A.C is

Question # 14

In pure capacitor A.C. circuit, the current I and charge q are.

Question # 15

The phase difference between current and voltage in an inductive circuit is.

Question # 16

Electro magnetic waves emitted from radio antenna are.

Question # 17

The reactance of inductor depends upon

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 The phase difference between current and voltage in an inductive circuit is.
A. zero
B. 90 o
C. 180 o
D. 45o
2 The slope of q-t curve at any instant of time gives.
A. Voltage
B. Current
C. Charge
D. Botha a and b
3 In an LRC circiut, the capacitance is made one-fourth, when an resonance . Then what should be change in inductance, so that the circuit remain in resonance?
A. 4 times
B. 1/4 times
C. 8 times
D. 2 times
4 Main reason for world wide use of A.C. is
A. It is cheaper
B. Transmitted
C. Botha a and b
D. Reaches in short time
5 In modulation, low frequency signal is known as
A. Carrier wave
B. fluctuated signal
C. Modulated carrier signal
D. Modulation signal
6 If Vrms be the root mean square value of emf then its peak to peak value is given by
7 In three phase A.C supply coils are inclined at an angle of.
A. 0o
B. 90o
C. 120o
D. 80o
8 XL=
A. 2πfL
B. 1/2πfL
C. 2πfL
D. fL/2π
9 Unit of impedance is:
A. Ohm
B. Ohm-1
C. no unit
D. Ohm m-1
10 Resistance of choke is
A. zero
B. Large
C. Very small
D. Infinite

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