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

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

Question # 2

The phase difference between current and voltage in an inductive circuit is.

Question # 3

X1is low for low frequency Fy but Xc is.

Question # 4

The value of capacitive reactance is given by

Question # 5

The effective value of any sinusoidal alternating current or voltage is

Question # 6

In chopke coil the resistance XL an resistance R are:

Question # 7

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

Question # 8

A capacitor is perfectly insulator for:

Question # 9

Vrms =

Question # 10

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 # 11

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

Question # 12

The peak to peak value of alternating voltage is

Question # 13

In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.

Question # 14

The main use of A.C is

Question # 15

In RLC circuit the energy is dissipated in

Question # 16

In metal detector, we use.

Question # 17

In LR circiut which one of the following statements is correct?

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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 Direct current can not flow through.
A. Inductor
B. Resistor
C. Transistor
D. Capacitor
2 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?
A. 4 times
B. 1/4 times
C. 8 times
D. 2 times
3 The Basic circuit element in a D.C. circuits which controls the current and voltage is
A.
Resistor
B. Inductor
C.
Capisitor
D. Transistor
4 The peak value of alternating current is 5√2 A. The mean square value of current will be:
A. 5A
B. 2.5A
C. 5√2A
D. 52
5 The velocity of an oscillating charge as it moves to and fro along a wire is.
A. Changing
B. Constant
C. Infinite
D. zero
6 If the frequency of A.C. supplied is doubled then the capacitive reactance becomes.
A. Half
B. Two
C. Four times
D. One fourth
7 In three phase voltage across any two lines is about.
A. 220 V
B. 230 V
C. 400 V
D. 430 V
8 The power factor of RL series circuit is.
A. 0
B. 1
C. Less then 1
D. More than one
9 The most common source of an A.C. Voltage is.
A. Motor
B. Cell
C. Generator
D. Thermo couple
10 The AC system is preferred to DC system because:
A. AC voltage can be easily changed in magnitude
B. DC motor angular velocity is affected badly
C. High voltage AC transmission is less efficient
D. Domestic appliance require AC voltage for their operation

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