Second Year Physics Chapter 16 Online MCQ Test for 2nd Year Physics Chapter 16 Alternating Current Preparation

FSC Part 2 Physics
Chapter 16 Test

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Physics FSC Part 2 Chapter 16 Online MCQ's Test

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Question # 1

If Io is the peak value of current, then its root mean square value is given by

Question # 2

At resonance, the behavior of R-L-C series circuit is.

Question # 3

Power dissipation is a pure inductive or in a pure capacitance circuit is:

Question # 4

In metal detector, we use.

Question # 5

In frequency modulation, the amplitude of carrier waves is

Question # 6

If Vrms be the root mean square value of emf then its peak to peak value is given by

Question # 7

The velocity of an oscillating charge as it moves to and fro along a wire is.

Question # 8

The resonance frequency is given by:

Question # 9

At resonance frequency, the impedance of RLC series circuit is.

Question # 10

The device which allows only the flow of D.C. is.

Question # 11

A capacitor is perfectly insulator for:

Question # 12

In case of capacitor, the unit of reactance is

Question # 13

An A.C. voltmeter reads 220 V, its peak value will be

Question # 14

In Pakistan the frequency of A.C. supply is.

Question # 15

The circuit which compares the two voltages is.

Question # 16

In LR circiut which one of the following statements is correct?

Question # 17

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

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 The power factor of RL series circuit is.
A. 0
B. 1
C. Less then 1
D. More than one
2 The highest value reached by the voltage or current is one cycle is called:
A. Peak to peak value
B. Peak value
C.
Instantaneous value
D. Root mean square value
3 A capacitor is perfectly insulator for:
A. Direct current
B. Alternating current
C. Direct as well as alternating current
D. None of these
4 The natural frequency of L.C circuit is equal to
5 Power dissipated in a pure inductor is.
A. Large
B. Small
C. Infinite
D. Zero
6 The unit of impedance is
A. Farad
B. Henry
C. Tesla
D. Ohm
7 Electro magnetic waves emitted from radio antenna are.
A. Stationary
B. Longitudinal
C. Transvers
D. Both a and b
8 The reactance of inductor depends upon
A. L
D. All of the above
9 The peak value of alternating current is 5√2 A. The mean square value of current will be:
A. 5A
B. 2.5A
C. 5√2A
D. 52
10 At high frequency, the current through a capacitor is
A. Small
B. Infinity
C. Zero
D. Large

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