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

The peak value of alternating current is 5√2 A. The mean square value of current will be:

Question # 2

When 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is.

Question # 3

In modulation, low frequency signal is known as

Question # 4

In a pure inductive A.C. circuit the current.

Question # 5

In case of A.C. through resistor V and I are

Question # 6

The peak value of A.C source is 20 A, then its rms value will be.

Question # 7

Main reason for world wide use of A.C. is

Question # 8

Power dissipated in a pure inductor is.

Question # 9

Impedance is denoted by:

Question # 10

An alternating voltage is given by 20 sin 157 t. Th efrequency of alternating voltage is:

Question # 11

In A.C circuit of inductor which one is true

Question # 12

The inductive reactance of a coil is direction proportional to.

Question # 13

The device which allows only the continuous flow of AC through it is.

Question # 14

In RLC circuit the energy is dissipated in

Question # 15

Phase difference between V and I of an A.C through resistor is.

Question # 16

An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately

Question # 17

A resistance frequency the impedance of RLC parallel circuit is.

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FSC Part 2 Physics Chapter 16 Online Test MCQ's

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 The device which allows only the continuous flow of AC through it is.
A. Inductor
B. Battery
C. Thermistor
D. Capacitor
2 The reactance of inductor depends upon
A. L
D. All of the above
3 When 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is.
A. 100 Ohm
B. 10 Ohm
C. 1000 Ohm
D. 1 Ohm
4 The velocity of an oscillating charge as it moves to and fro along a wire is.
A. Changing
B. Constant
C. Infinite
D. zero
5 In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is.
A. Maximum
B. Minimum
C. Zero
D. Negative
6 The flow of D.C current is opposed by
A. Resistor
B. Induction
C. Capacitor
D. All of these
7 The peak value of A.C source is 20 A, then its rms value will be.
A. 14.1 A
B. 10 A
C. 20 A
D. 28.2 A
8 The natural frequency of L.C circuit is equal to
9 An electromagnetic wave goes from air to glass which of the following does not change?
A. Radio waves
B. X-rays
C. Ultra violet radiation
D. Ultra sond waves
10 In pure capacitor A.C. circuit, the current I and charge q are.
A. In phase
B. Out of phase
C. Parallel to each other
D. None of above

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