Second Year Physics Chapter 16 Online MCQ Test for 2nd Year Physics Chapter 16 Alternating Current Preparation

FSC Part 2 Physics
Chapter 16 Test

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Physics FSC Part 2 Chapter 16 Online MCQ's Test

00:00
Question # 1

In a pure inductive A.C. circuit the current.

Question # 2

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

Question # 3

The reactance of inductor depends upon

Question # 4

The main use of A.C is

Question # 5

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

Question # 6

The peak value of alternating current is 5√2 A. The mean square value of current will be:

Question # 7

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

Question # 8

The combined effect of resistance and reactance in circuit is called:

Question # 9

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

Question # 10

The power factor of RL series circuit is.

Question # 11

The electromagnetic spectrum contains

Question # 12

Direct current can not flow through.

Question # 13

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

Question # 14

The flow of D.C current is opposed by

Question # 15

The natural frequency of L.C circuit is equal to

Question # 16

Electro magnetic waves emitted from radio antenna are.

Question # 17

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

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FSC 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 when an inductor comes close to a metallic object, its inductance is.
A. Decreased
B. Increased
C. Becomes half
D. Becomes 4 times
2 In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is.
A. Maximum
B. Minimum
C. Zero
D. Negative
3 High frequency radio wave is called as
A. Fluctuate
B. Carrier wave
C. Matter wave
D. Mechanical wave
4 The condition of resonance is:
A. XL = 1/2 Xc
B. XL = Xc
C. Xc = 4x2
D. None of above
5 X1is low for low frequency Fy but Xc is.
A. Zero
B. Low
C. High
D. Same is H
6 The phase difference between the current and voltage at resonce is:
A. 0
B. π
C. -π
D. π/2
7 The device which allows only the continuous flow of AC through it is.
A. Inductor
B. Battery
C. Thermistor
D. Capacitor
8 An alternating quantity (voltage or current) is completely known if we know its:
A. Maximum
B. Frequency and phase
C. Effective value
D. Both (a) & (b)
9 The phase angle of a series RLC circult at resonant frequency is
A. 1/2
B. sigma
C. Zero
D. sigma /4
10 Choke consumes extremely small
A. Current
B. Charge
C. Power
D. Potential

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