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

SI unit of reactance is.

Question # 2

In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is.

Question # 3

The effective value of any sinusoidal alternating current or voltage is

Question # 4

XL=

Question # 5

An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

The circuit in which current and voltage are in phase, the power factor is:

Question # 10

The phase difference between the current and voltage at resonce is:

Question # 11

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

Question # 12

Direct current can not flow through.

Question # 13

Electro magnetic waves emitted from radio antenna are.

Question # 14

Impedance is denoted by:

Question # 15

In frequency modulation which factor changed.

Question # 16

The unit of impedance is.

Question # 17

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

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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 main reason for world wide use of A.C is because:
A. It is very high power 
B. It can be transmitted over long distance
C. It is cheaper to use
D. ALl of above
2 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
3 The phase difference between current and voltage in an inductive circuit is.
A. zero
B. 90 o
C. 180 o
D. 45o
4 The basic circuit element in A.C. circuit which controls current.
A. Resistor only
B. Capacitor only
C. Inductor only
D. All of these
5 The inductive reactance of a coil is direction proportional to.
A. Inductance
B. Resistance
C. Frequency of A.C.
D. Both frequency of A.C. and inductance
6 The device which allows only the continuous flow of AC through it is.
A. Inductor
B. Battery
C. Thermistor
D. Capacitor
7 Power dissipation is a pure inductive or in a pure capacitance circuit is:
A. 106
B. 0
C. 10∘
D. Maximum
8 The condition of resonance is:
A. XL = 1/2 Xc
B. XL = Xc
C. Xc = 4x2
D. None of above
9 The natural frequency of L.C circuit is equal to
10 In modulation, low frequency signal is known as
A. Carrier wave
B. fluctuated signal
C. Modulated carrier signal
D. Modulation signal

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