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

00:00
Question # 1

SI unit of reactance is.

Question # 2

when an inductor comes close to a metallic object, its inductance is.

Question # 3

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

Question # 4

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

Question # 5

The value of capacitive reactance is given by

Question # 6

Choke consumes extremely small

Question # 7

Phase difference between V and I of an A.C through resistor is.

Question # 8

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

Question # 9

X1is low for low frequency Fy but Xc is.

Question # 10

A resistance frequency the impedance of RLC parallel circuit is.

Question # 11

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

Question # 12

Resistance of choke is

Question # 13

In metal detector, we use.

Question # 14

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

Question # 15

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

Question # 16

Which consumes small power.

Question # 17

The power factor of RL series circuit 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 The combined effect of resistance and reactance is knows as.
A. Inductance
B. Conductance
C. Resistance
D. Impedance
3 The mean value of A.C. in a cycle is.
A. 1
B. 0
C. I2
D. Nil
4 In frequency modulation which factor changed.
A. Amplitude of charge carriers
B. Frequency of charge carriers
C. Amplitude of signal
D. Frequency of signal
5 In Pakistan the frequency of A.C. supply is.
A. 50 Hz
B. 60 Hz
C. 45 Hz
D. 70 Hz
6 Electron vibrating 94,000 times each second will produce radio waves of frequency.
A. 94 Hz
B. 940 HZ
C. 94 Hz
D. 490 Hz
7 when an inductor comes close to a metallic object, its inductance is.
A. Decreased
B. Increased
C. Becomes half
D. Becomes 4 times
8 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
9 Resistance of choke is
A. zero
B. Large
C. Very small
D. Infinite
10 In RLC circuit the energy is dissipated in
A. R only
B. R and L
C. R and C
D. L and C

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