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

Question # 2

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

Question # 3

An A.C. voltmeter reads 220 V, its peak value will be

Question # 4

Xc =

Question # 5

The circuit which compares the two voltages is.

Question # 6

The expression P = VI hold only when current and voltage are.

Question # 7

In RLC circuit the energy is dissipated in

Question # 8

The unit of impedance is

Question # 9

Power dissipated in a pure inductor is.

Question # 10

The peak to peak value of alternating voltage is

Question # 11

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

Question # 12

The peak value of A.C source is 20 A, then its rms value will be.

Question # 13

In pure capacitor A.C. circuit, the current I and charge q are.

Question # 14

Electro magnetic waves emitted from radio antenna are.

Question # 15

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

Question # 16

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

Question # 17

The combined effect of resistance and reactance is knows as.

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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 resonance frequency is given by:
A. fr = 2π√LC
B. fr = 1/2πLC
C. fr = 1/ 2π√LC
D. f1 = 1/ 2πC√L
2 The internal resistance of a capacitor is called:
A. Impedance
B. Resistance
C. Reactance
D. Conductance
3 In three phase A.C. generator the phase difference between each pair of coil is.
A. 45o
B. 90o
C. 120o
D. 60o
4 The mean value of A.C. in a cycle is.
A. 1
B. 0
C. I2
D. Nil
5 In chopke coil the resistance XL an resistance R are:
A. XL=R
B. XL<<R
C. XL>>R
D. XL=∞
6 The electromagnetic spectrum contains
A. Radio waves
B. X-rays
C. Microwaves
D. All of these
7 The most common source of an A.C. Voltage is.
A. Motor
B. Cell
C. Generator
D. Thermo couple
8 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
9 If Vrms be the root mean square value of emf then its peak to peak value is given by
10 The phase difference between current and voltage in an inductive circuit is.
A. zero
B. 90 o
C. 180 o
D. 45o

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