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

Unit of impedance is:

Question # 2

The internal resistance of a capacitor is called:

Question # 3

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

Question # 4

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

Question # 5

100 micro F capacitor is connects to an AC voltage 24 V and frequency 50 Hz. The reactance of the capacitor is.

Question # 6

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

Question # 7

The main use of A.C is

Question # 8

The AC system is preferred to DC system because:

Question # 9

In metal detector, we use.

Question # 10

The combined effect of resistance and reactance in circuit is called:

Question # 11

Which consumes small power.

Question # 12

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

Question # 13

The peak value of alternating current is 5√2 A. The mean square value of current will be:

Question # 14

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

Question # 15

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

Question # 16

An electromagnetic wave goes from air to glass which of the following does not change?

Question # 17

In modulation, low frequency signal is known as

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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 The combined effect of resistance and reactance is knows as.
A. Inductance
B. Conductance
C. Resistance
D. Impedance
2 When 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is.
A. 100 Ohm
B. 10 Ohm
C. 1000 Ohm
D. 1 Ohm
3 In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.
A. 90o
B. 270o
C. 0o
D. 180o
4 The electromagnetic spectrum contains
A. Radio waves
B. X-rays
C. Microwaves
D. All of these
5 X1is low for low frequency Fy but Xc is.
A. Zero
B. Low
C. High
D. Same is H
6 The reactance is the ratio of
A. Vrms/Irms
B. Vrms x Irms
C. Irms/Vrms
D. Vmax x Vrms
7 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
8 At resonance, the behavior of R-L-C series circuit is.
A. Resistive
B. Capacitive
C. Inductive
D. Modulative
9 Average value of current and voltage over a complete cycle is.
A. Positive
B. Negative
C. Zero
D. Infinite
10 At resonance frequency, the impedance of RLC series circuit is.
A. Maximum
B. Minimum
C. Zero
D. Infinite

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