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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  • Total Questions17

  • Time Allowed20

Physics ICS Part 2 Chapter 16 Online MCQ's Test

00:00
Question # 1

At high frequency the value of reactance of capacitor will be.

Question # 2

An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately

Question # 3

Main reason for world wide use of A.C. is

Question # 4

Resistance of choke is

Question # 5

The main reason for world wide use of A.C is because:

Question # 6

The AC system is preferred to DC system because:

Question # 7

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

Question # 8

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

Question # 9

The peak to peak value of alternating voltage is

Question # 10

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

Question # 11

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 # 12

An alternating quantity (voltage or current) is completely known if we know its:

Question # 13

In metal detector, we use.

Question # 14

The value of capacitive reactance is given by

Question # 15

In frequency modulation, the amplitude of carrier waves is

Question # 16

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

Question # 17

The device which allows only the continuous flow of AC through it 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 The unit of impedance is.
A. Henry
B. Hertz
C. Ampere
D. Ohm
2 In case of capacitor, the unit of reactance is
A. Farad
B. Ohm
C. Newton
D. All of these
3 In frequency modulation which factor changed.
A. Amplitude of charge carriers
B. Frequency of charge carriers
C. Amplitude of signal
D. Frequency of signal
4 An A.C. voltmeter reads 220 V, its peak value will be
A. 225 V
B. 240 V
C. 311.12 V
D. 300 V
5 If Vrms be the root mean square value of emf then its peak to peak value is given by
6 At high frequency the value of reactance of capacitor will be.
A. Small
B. Zero
C. Large
D. Infinite
7 The electromagnetic spectrum contains
A. Radio waves
B. X-rays
C. Microwaves
D. All of these
8 The reactance of inductor depends upon
A. L
D. All of the above
9 The peak value of alternating current is 5√2 A. The mean square value of current will be:
A. 5A
B. 2.5A
C. 5√2A
D. 52
10 If Io is the peak value of current, then its root mean square value is given by
B. 2 Io
C. Io
D. 0.7 Io

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