2nd Year Physics Chapter 16 Online MCQ Test for 12th Class Physics Chapter 16 (Alternating Current)

ICS Part 2 Physics
Chapter 16 Test

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

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Physics ICS Part 2 Chapter 16 Online MCQ's Test

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Question # 1

Which consumes small power.

Question # 2

The value of capacitive reactance is given by

Question # 3

A resistance frequency the impedance of RLC parallel circuit is.

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

In AC system we generate sine wave form because:

Question # 9

In Series resonance circuit the impedance of circuit art resonance frequency, is

Question # 10

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

Question # 11

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

Question # 12

The basic circuit element in A.C. circuit which controls current.

Question # 13

The natural frequency of L.C circuit is equal to

Question # 14

Power dissipation is a pure inductive or in a pure capacitance circuit is:

Question # 15

Radio frequency choke is

Question # 16

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

Question # 17

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

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ICS 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 Power dissipation in A.C circuit is expressed as:
A. P =Irms x Vrms Sinθ
B. IxVCosθ
C. IrmsxVrmsCosθ
D. Irms x Vrms Sin2θ
2 The resonance frequency is given by:
A. fr = 2π√LC
B. fr = 1/2πLC
C. fr = 1/ 2π√LC
D. f1 = 1/ 2πC√L
3 The internal resistance of a capacitor is called:
A. Impedance
B. Resistance
C. Reactance
D. Conductance
4 XL=
A. 2πfL
B. 1/2πfL
C. 2πfL
D. fL/2π
5 100 micro F capacitor is connects to an AC voltage 24 V and frequency 50 Hz. The reactance of the capacitor is.
A. 30.8 Ohm
B. 31.8 Ohm
C. 34.8 Ohm
D. 40 Ohm
6 The device which allows only the continuous flow of AC through it is.
A. Inductor
B. Battery
C. Thermistor
D. Capacitor
7 If the frequency of A.C. supplied is doubled then the capacitive reactance becomes.
A. Half
B. Two
C. Four times
D. One fourth
8 An A.C. voltmeter reads 220 V, its peak value will be
A. 225 V
B. 240 V
C. 311.12 V
D. 300 V
9 In frequency modulation, the amplitude of carrier waves is
A. Increases
B. Remains constant
C. Decreases
D. None of these
10 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

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