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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Physics ICS Part 2 Chapter 16 Online MCQ's Test

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Question # 1

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

Question # 2

The resonance frequency is given by:

Question # 3

X1is low for low frequency Fy but Xc is.

Question # 4

Xc =

Question # 5

For electromagnetic waves, Maxwell generalized

Question # 6

The flow of D.C current is opposed by

Question # 7

The sum of positive and negative peak value called.

Question # 8

In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is.

Question # 9

The peak to peak value of alternating voltage is

Question # 10

In Series resonance circuit the impedance of circuit art resonance frequency, is

Question # 11

The main use of A.C is

Question # 12

The slope of q-t curve at any instant of time gives.

Question # 13

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

Question # 14

The value of capacitive reactance is given by

Question # 15

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

Question # 16

The reactance is the ratio of

Question # 17

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

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ICS 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 case of capacitor, the unit of reactance is
A. Farad
B. Ohm
C. Newton
D. All of these
2 The effective value of any sinusoidal alternating current or voltage is
D. None of the above
3 The value of capacitive reactance is given by
A. Xc = VI
B. xc= 1/wc or xc= wL
C. xc= 1*wc or xc=Lw
D. All of above
4 Choke consumes extremely small
A. Current
B. Charge
C. Power
D. Potential
5 The phase difference between the current and voltage at resonce is:
A. 0
B. π
C. -π
D. π/2
6 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
7 Which consumes small power.
A. Inductor
B. Resistor
C. Motor
D. All of these
8 At high frequency the value of reactance of capacitor will be.
A. Small
B. Zero
C. Large
D. Infinite
9 In Pakistan the frequency of A.C. supply is.
A. 50 Hz
B. 60 Hz
C. 45 Hz
D. 70 Hz
10 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

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