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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MCQ's Test For Chapter 0 "Physics FSC Part 2 Chapter 16 Online MCQ's Test"

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Physics FSC Part 2 Chapter 16 Online MCQ's Test

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Question # 1

The inductive reactance of a coil is direction proportional to.

Question # 2

The Basic circuit element in a D.C. circuits which controls the current and voltage is

Question # 3

XL=

Question # 4

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

Question # 5

SI unit of reactance is.

Question # 6

The slope of q-t curve at any instant of time gives.

Question # 7

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

Question # 8

The reactance is the ratio of

Question # 9

The unit of impedance is.

Question # 10

The peak to peak value of alternating voltage is

Question # 11

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

Question # 12

Power dissipated in a pure inductor is.

Question # 13

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

Question # 14

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

Question # 15

The mean value of A.C. in a cycle is.

Question # 16

In purely resistive A.C circuit, instantaneous value of voltage and current:

Question # 17

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

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 Average value of current and voltage over a complete cycle is.
A. Positive
B. Negative
C. Zero
D. Infinite
2 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
3 The wave form of alternating voltage is a
A. Cotangent curve
B. Cosine curve
C. Sine curve
D. Tangent curve
4 The reactance of inductor depends upon
A. L
D. All of the above
5 The reactance is the ratio of
A. Vrms/Irms
B. Vrms x Irms
C. Irms/Vrms
D. Vmax x Vrms
6 The inductive reactance of a coil is direction proportional to.
A. Inductance
B. Resistance
C. Frequency of A.C.
D. Both frequency of A.C. and inductance
7 The effective value of any sinusoidal alternating current or voltage is
D. None of the above
8 SI unit of reactance is.
A. Ohm
B. Mho
C. Farad
D. Henry
9 An in cudutor may store energy in
A. Its magnetic field
B. Its coil
C. Its electric field
D. A neighboring circuit
10 Power dissipation is a pure inductive or in a pure capacitance circuit is:
A. 106
B. 0
C. 10∘
D. Maximum

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