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

The flow of D.C current is opposed by

Question # 2

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

Question # 3

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

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

Direct current can not flow through.

Question # 7

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

Question # 8

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

Question # 9

Which consumes small power.

Question # 10

The internal resistance of a capacitor is called:

Question # 11

In chopke coil the resistance XL an resistance R are:

Question # 12

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

Question # 13

The device which allows only the flow of D.C. is.

Question # 14

The unit of impedance is.

Question # 15

The mean value of A.C. in a cycle is.

Question # 16

The unit of impedance is

Question # 17

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

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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 Phase difference between V and I of an A.C through resistor is.
A. Zero Degree
B. 90 o
C. 80o
D. 120o
2 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
3 The electromagnetic spectrum contains
A. Radio waves
B. X-rays
C. Microwaves
D. All of these
4 Which consumes small power.
A. Inductor
B. Resistor
C. Motor
D. All of these
5 The power factor of RL series circuit is.
A. 0
B. 1
C. Less then 1
D. More than one
6 At high frequency the value of reactance of capacitor will be.
A. Small
B. Zero
C. Large
D. Infinite
7 In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.
A. 90o
B. 270o
C. 0o
D. 180o
8 The resonance frequency is given by:
A. fr = 2π√LC
B. fr = 1/2πLC
C. fr = 1/ 2π√LC
D. f1 = 1/ 2πC√L
9 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
10 The circuit which compares the two voltages is.
A. LDR
B. Sensor
C. Comparator
D. Logic gate

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