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

For electromagnetic waves, Maxwell generalized

Question # 2

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

Question # 3

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

Question # 4

If the frequency of A.C. supplied is doubled then the capacitive reactance becomes.

Question # 5

The internal resistance of a capacitor is called:

Question # 6

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

Question # 7

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 # 8

In three phase A.C. generator the phase difference between each pair of coil is.

Question # 9

Xc =

Question # 10

The AC system is preferred to DC system because:

Question # 11

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

Question # 12

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

Question # 13

In three phase voltage across any two lines is about.

Question # 14

In A.C circuit through a capacitor which one is:

Question # 15

The inductive reactance of a coil is direction proportional to.

Question # 16

In frequency modulation which factor changed.

Question # 17

Power dissipated in a pure inductor is.

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 The combined effect of resistance and reactance is knows as.
A. Inductance
B. Conductance
C. Resistance
D. Impedance
2 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
3 The circuit which compares the two voltages is.
A. LDR
B. Sensor
C. Comparator
D. Logic gate
4 In frequency modulation, the amplitude of carrier waves is
A. Increases
B. Remains constant
C. Decreases
D. None of these
5 In LR circiut which one of the following statements is correct?
A. L and R opposes each other
B. R value increases with frequency
C. The inductive reactance increases with frequency
D. The inductive reactance decreases with frequency
6 The natural frequency of L.C circuit is equal to
7 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
8 XL=
A. 2πfL
B. 1/2πfL
C. 2πfL
D. fL/2π
9 The wave form of alternating voltage is a
A. Cotangent curve
B. Cosine curve
C. Sine curve
D. Tangent curve
10 The phase difference between the current and voltage at resonce is:
A. 0
B. π
C. -π
D. π/2

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