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

Average value of current and voltage over a complete cycle is.

Question # 2

Power dissipation in A.C circuit is expressed as:

Question # 3

In case of capacitor, the unit of reactance is

Question # 4

The unit of impedance is

Question # 5

The A.M. transmission frequencies range from

Question # 6

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

Question # 7

The electromagnetic spectrum contains

Question # 8

At high frequency, the current through a capacitor is

Question # 9

SI unit of reactance is.

Question # 10

The circuit in which current and voltage are in phase, the power factor is:

Question # 11

The effective value of any sinusoidal alternating current or voltage is

Question # 12

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?

Question # 13

Impedance is denoted by:

Question # 14

In A.C circuit of inductor which one is true

Question # 15

The highest value reached by the voltage or current in one cycle is called.

Question # 16

In purely resistive A.C circuit, instantaneous value of voltage and current:

Question # 17

The velocity of an oscillating charge as it moves to and fro along a wire 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 In three phase A.C supply coils are inclined at an angle of.
A. 0o
B. 90o
C. 120o
D. 80o
2 If Vrms be the root mean square value of emf then its peak to peak value is given by
3 The device which allows only the flow of D.C. is.
A. Capacitors
B. transformer
C. Inductor
D. Generator
4 Radio frequency choke is
A. Iron cored
B. Air Cored
C. Air as well as iron cored
D. None of these
5 In a pure inductive A.C. circuit the current.
A. Lags behind voltage by 90 o
B. Leads the voltage by 90 o
C. In phase with voltage
D. Leads the voltage by 270 o
6 In Series resonance circuit the impedance of circuit art resonance frequency, is
A. Maximum
B. Minimum
C. It is unequal to R
D. None of above
7 The natural frequency of L.C circuit is equal to
8 Power dissipation is a pure inductive or in a pure capacitance circuit is:
A. 106
B. 0
C. 10∘
D. Maximum
9 The effective value of any sinusoidal alternating current or voltage is
D. None of the above
10 Direct current can not flow through.
A. Inductor
B. Resistor
C. Transistor
D. Capacitor

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