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

00:00
Question # 1

Resistance of choke is

Question # 2

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

Question # 3

Power dissipation in A.C circuit is expressed as:

Question # 4

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

Question # 5

The internal resistance of a capacitor is called:

Question # 6

The Basic circuit element in a D.C. circuits which controls the current and voltage is

Question # 7

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

Question # 8

In frequency modulation which factor changed.

Question # 9

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

Question # 10

The unit of impedance is.

Question # 11

Direct current can not flow through.

Question # 12

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

Question # 13

The combined effect of resistance and reactance is knows as.

Question # 14

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

Question # 15

The phase angle of a series RLC circult at resonant frequency is

Question # 16

The sum of positive and negative peak value called.

Question # 17

Power dissipated in a pure inductor is.

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16th Chapter

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 three phase A.C supply coils are inclined at an angle of.
A. 0o
B. 90o
C. 120o
D. 80o
2 The mean value of A.C. in a cycle is.
A. 1
B. 0
C. I2
D. Nil
3 An in cudutor may store energy in
A. Its magnetic field
B. Its coil
C. Its electric field
D. A neighboring circuit
4 Resistance of choke is
A. zero
B. Large
C. Very small
D. Infinite
5 An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately
A. 50 Hz
B. 100 Hz
C. 80 Hz
D. 120 Hz
6 The resonance frequency is given by:
A. fr = 2π√LC
B. fr = 1/2πLC
C. fr = 1/ 2π√LC
D. f1 = 1/ 2πC√L
7 For electromagnetic waves, Maxwell generalized
A. Gauses law for magnetism
B. Gauses law for eletricity
C. Fradays law
D. Amperes law
8 Xc =
A. 1/2πfc
B. 2πfc
C. 2π/fc
D. fc/2π
9 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
10 The phase difference between current and voltage in an inductive circuit is.
A. zero
B. 90 o
C. 180 o
D. 45o

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