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

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Question # 1

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

Question # 2

If Io is the peak value of current, then its root mean square value is given by

Question # 3

The phase difference between current and voltage in an inductive circuit is.

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

The condition of resonance is:

Question # 9

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

Question # 10

In three phase voltage across any two lines is about.

Question # 11

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

Question # 12

Which consumes small power.

Question # 13

In case of A.C. through resistor V and I are

Question # 14

Power dissipation in A.C circuit is expressed as:

Question # 15

A capacitor is perfectly insulator for:

Question # 16

The natural frequency of L.C circuit is equal to

Question # 17

The resonance frequency is given by:

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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 The device which allows only the flow of D.C. is.
A. Capacitors
B. transformer
C. Inductor
D. Generator
2 SI unit of reactance is.
A. Ohm
B. Mho
C. Farad
D. Henry
3 In three phase A.C supply coils are inclined at an angle of.
A. 0o
B. 90o
C. 120o
D. 80o
4 The most common source of an A.C. Voltage is.
A. Motor
B. Cell
C. Generator
D. Thermo couple
5 In case of capacitor, the unit of reactance is
A. Farad
B. Ohm
C. Newton
D. All of these
6 Phase difference between V and I of an A.C through resistor is.
A. Zero Degree
B. 90 o
C. 80o
D. 120o
7 In Series resonance circuit the impedance of circuit art resonance frequency, is
A. Maximum
B. Minimum
C. It is unequal to R
D. None of above
8 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
9 The phase angle of a series RLC circult at resonant frequency is
A. 1/2
B. sigma
C. Zero
D. sigma /4
10 For electromagnetic waves, Maxwell generalized
A. Gauses law for magnetism
B. Gauses law for eletricity
C. Fradays law
D. Amperes law

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