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 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is.

Question # 2

In a pure inductive A.C. circuit the current.

Question # 3

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

Question # 4

Impedance is denoted by:

Question # 5

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

Question # 6

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

Question # 7

The main use of A.C is

Question # 8

The circuit which compares the two voltages is.

Question # 9

The main reason for world wide use of A.C is because:

Question # 10

In three phase A.C. generator the phase difference between each pair of coil is.

Question # 11

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

Question # 12

Direct current can not flow through.

Question # 13

The AC system is preferred to DC system because:

Question # 14

The velocity of an oscillating charge as it moves to and fro along a wire is.

Question # 15

Radio frequency choke is

Question # 16

The slope of q-t curve at any instant of time gives.

Question # 17

The flow of D.C current is opposed by

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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 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
2 The flow of D.C current is opposed by
A. Resistor
B. Induction
C. Capacitor
D. All of these
3 Radio frequency choke is
A. Iron cored
B. Air Cored
C. Air as well as iron cored
D. None of these
4 An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately
A. 50 Hz
B. 100 Hz
C. 80 Hz
D. 120 Hz
5 At high frequency the value of reactance of capacitor will be.
A. Small
B. Zero
C. Large
D. Infinite
6 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
7 The peak to peak value of alternating voltage is
A. 2Vo
B. Vo
D. None of these
8 The basic circuit element in A.C. circuit which controls current.
A. Resistor only
B. Capacitor only
C. Inductor only
D. All of these
9 The unit of impedance is.
A. Henry
B. Hertz
C. Ampere
D. Ohm
10 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

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