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

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Question # 1

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

Question # 2

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 # 3

During each cycle A.C. voltage reaches a peak value.

Question # 4

In modulation, low frequency signal is known as

Question # 5

In RLC circuit the energy is dissipated in

Question # 6

Direct current can not flow through.

Question # 7

At resonance, the behavior of R-L-C series circuit is.

Question # 8

The A.M. transmission frequencies range from

Question # 9

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

Question # 10

Choke consumes extremely small

Question # 11

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

Question # 12

An in cudutor may store energy in

Question # 13

The combined effect of resistance and reactance is knows as.

Question # 14

Power dissipated in a pure inductor is.

Question # 15

In three phase voltage across any two lines is about.

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

In A.C circuit through a capacitor which one 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 The unit of impedance is
A. Farad
B. Henry
C. Tesla
D. Ohm
2 In AC system we generate sine wave form because:
A. It san be easily draw
B. It produces least disturbance in electrical circuits
C. It is nature standard
D. Other waves cannot be produced easily
3 If Vrms be the root mean square value of emf then its peak to peak value is given by
4 In case of A.C. through resistor V and I are
A. At 0 o with each other
B. At 180 o with each other
C. At 90 o with each other
D. At 270 o with each other
5 In Pakistan the frequency of A.C. supply is.
A. 50 Hz
B. 60 Hz
C. 45 Hz
D. 70 Hz
6 The basic circuit element in A.C. circuit which controls current.
A. Resistor only
B. Capacitor only
C. Inductor only
D. All of these
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 The condition of resonance is:
A. XL = 1/2 Xc
B. XL = Xc
C. Xc = 4x2
D. None of above
9 The phase difference between current and voltage in an inductive circuit is.
A. zero
B. 90 o
C. 180 o
D. 45o
10 When 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is.
A. 100 Ohm
B. 10 Ohm
C. 1000 Ohm
D. 1 Ohm

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