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

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

Question # 2

when an inductor comes close to a metallic object, its inductance is.

Question # 3

The wave form of alternating voltage is a

Question # 4

At high frequency, the current through a capacitor is

Question # 5

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

Question # 6

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

Question # 7

For electromagnetic waves, Maxwell generalized

Question # 8

The reactance of inductor depends upon

Question # 9

Vrms =

Question # 10

The phase difference between the current and voltage at resonce is:

Question # 11

100 micro F capacitor is connects to an AC voltage 24 V and frequency 50 Hz. The reactance of the capacitor is.

Question # 12

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

Question # 13

The value of capacitive reactance is given by

Question # 14

The internal resistance of a capacitor is called:

Question # 15

The resonance frequency is given by:

Question # 16

Xc =

Question # 17

In frequency modulation which factor changed.

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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 phase angle of a series RLC circult at resonant frequency is
A. 1/2
B. sigma
C. Zero
D. sigma /4
2 Power dissipation is a pure inductive or in a pure capacitance circuit is:
A. 106
B. 0
C. 10∘
D. Maximum
3 The value of capacitive reactance is given by
A. Xc = VI
B. xc= 1/wc or xc= wL
C. xc= 1*wc or xc=Lw
D. All of above
4 Electron vibrating 94,000 times each second will produce radio waves of frequency.
A. 94 Hz
B. 940 HZ
C. 94 Hz
D. 490 Hz
5 In three phase A.C. generator the phase difference between each pair of coil is.
A. 45o
B. 90o
C. 120o
D. 60o
6 The main use of A.C is
A. Minimum line losses
B. Long distance transmission
C. Stepping up to required voltage only
D. Steeping down to required voltage only
7 Unit of impedance is:
A. Ohm
B. Ohm-1
C. no unit
D. Ohm m-1
8 The A.M. transmission frequencies range from
A. 540 KHz to 1000 KHz
B. 540 Khz to 1600 KHz
C. 520 KHz TO 1600 KHz
D. 520 KHz TO 1400 KHz
9 The unit of impedance is.
A. Henry
B. Hertz
C. Ampere
D. Ohm
10 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

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