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

00:00
Question # 1

Which consumes small power.

Question # 2

A resistance frequency the impedance of RLC parallel circuit is.

Question # 3

An alternating quantity (voltage or current) is completely known if we know its:

Question # 4

Electron vibrating 94,000 times each second will produce radio waves of frequency.

Question # 5

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 # 6

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

Question # 7

At high frequency, the current through a capacitor is

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

In A.C circuit of inductor which one is true

Question # 12

In case of capacitor, the unit of reactance is

Question # 13

Electro magnetic waves emitted from radio antenna are.

Question # 14

Power dissipation in A.C circuit is expressed as:

Question # 15

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

Question # 16

Phase difference between V and I of an A.C through resistor 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 If Io is the peak value of current, then its root mean square value is given by
B. 2 Io
C. Io
D. 0.7 Io
2 In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is.
A. Maximum
B. Minimum
C. Zero
D. Negative
3 Power dissipation in A.C circuit is expressed as:
A. P =Irms x Vrms Sinθ
B. IxVCosθ
C. IrmsxVrmsCosθ
D. Irms x Vrms Sin2θ
4 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
5 Power dissipation is a pure inductive or in a pure capacitance circuit is:
A. 106
B. 0
C. 10∘
D. Maximum
6 The device which allows only the continuous flow of AC through it is.
A. Inductor
B. Battery
C. Thermistor
D. Capacitor
7 The circuit in which current and voltage are in phase, the power factor is:
A. Zero
B. 1
C. -1
D. 2
8 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
9 In modulation, low frequency signal is known as
A. Carrier wave
B. fluctuated signal
C. Modulated carrier signal
D. Modulation signal
10 The condition of resonance is:
A. XL = 1/2 Xc
B. XL = Xc
C. Xc = 4x2
D. None of above

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