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

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

Question # 2

The power factor of RL series circuit is.

Question # 3

Power dissipated in a pure inductor is.

Question # 4

The AC system is preferred to DC system because:

Question # 5

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

Question # 6

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

Question # 7

High frequency radio wave is called as

Question # 8

The mean value of A.C. in a cycle is.

Question # 9

The value of capacitive reactance is given by

Question # 10

The A.M. transmission frequencies range from

Question # 11

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

Question # 12

The phase difference between the current and voltage at resonce is:

Question # 13

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

Question # 14

The inductive reactance of a coil is direction proportional to.

Question # 15

In AC system we generate sine wave form because:

Question # 16

Radio frequency choke is

Question # 17

The most common source of an A.C. Voltage 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 Main reason for world wide use of A.C. is
A. It is cheaper
B. Transmitted
C. Botha a and b
D. Reaches in short time
2 100 micro F capacitor is connects to an AC voltage 24 V and frequency 50 Hz. The reactance of the capacitor is.
A. 30.8 Ohm
B. 31.8 Ohm
C. 34.8 Ohm
D. 40 Ohm
3 In metal detector, we use.
A. L-C circuit
B. R-L circuit
C. R-C circuit
D. RLC series circuit
4 If Vrms be the root mean square value of emf then its peak to peak value is given by
5 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
6 Radio frequency choke is
A. Iron cored
B. Air Cored
C. Air as well as iron cored
D. None of these
7 The Basic circuit element in a D.C. circuits which controls the current and voltage is
A.
Resistor
B. Inductor
C.
Capisitor
D. Transistor
8 The circuit in which current and voltage are in phase, the power factor is:
A. Zero
B. 1
C. -1
D. 2
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 unit of impedance is.
A. Henry
B. Hertz
C. Ampere
D. Ohm

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