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

In three phase voltage across any two lines is about.

Question # 2

Power dissipated in a pure inductor is.

Question # 3

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

Question # 4

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

Question # 5

Electro magnetic waves emitted from radio antenna are.

Question # 6

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

Question # 7

The AC system is preferred to DC system because:

Question # 8

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

Question # 9

In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is.

Question # 10

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

Question # 11

Power dissipation in A.C circuit is expressed as:

Question # 12

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 # 13

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

Question # 14

The most common source of an A.C. Voltage is.

Question # 15

In AC system we generate sine wave form because:

Question # 16

For electromagnetic waves, Maxwell generalized

Question # 17

The electromagnetic spectrum contains

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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 In case of capacitor, the unit of reactance is
A. Farad
B. Ohm
C. Newton
D. All of these
2 The phase difference between current and voltage in an inductive circuit is.
A. zero
B. 90 o
C. 180 o
D. 45o
3 Impedance is denoted by:
A. A 
B. Z
C. P
D. Q
4 The slope of q-t curve at any instant of time gives.
A. Voltage
B. Current
C. Charge
D. Botha a and b
5 Power dissipated in a pure inductor is.
A. Large
B. Small
C. Infinite
D. Zero
6 The resonance frequency is given by:
A. fr = 2π√LC
B. fr = 1/2πLC
C. fr = 1/ 2π√LC
D. f1 = 1/ 2πC√L
7 High frequency radio wave is called as
A. Fluctuate
B. Carrier wave
C. Matter wave
D. Mechanical wave
8 Power dissipation in A.C circuit is expressed as:
A. P =Irms x Vrms Sinθ
B. IxVCosθ
C. IrmsxVrmsCosθ
D. Irms x Vrms Sin2θ
9 The combined effect of resistance and reactance in circuit is called:
A. Impedance
B. Inductance
C. Capacitance
D. None of above
10 Electro magnetic waves emitted from radio antenna are.
A. Stationary
B. Longitudinal
C. Transvers
D. Both a and b

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