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

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

Question # 2

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

Question # 3

The electromagnetic spectrum contains

Question # 4

XL=

Question # 5

Power dissipation is a pure inductive or in a pure capacitance circuit is:

Question # 6

In A.C circuit through a capacitor which one is:

Question # 7

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

Question # 8

In Series resonance circuit the impedance of circuit art resonance frequency, is

Question # 9

If Io is the peak value of current, then its root mean square value is given by

Question # 10

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

Question # 11

In three phase voltage across any two lines is about.

Question # 12

The circuit which compares the two voltages is.

Question # 13

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

Question # 14

The inductive reactance of a coil is direction proportional to.

Question # 15

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

Question # 16

The internal resistance of a capacitor is called:

Question # 17

Main reason for world wide use of A.C. is

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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 Xc =
A. 1/2πfc
B. 2πfc
C. 2π/fc
D. fc/2π
2 In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.
A. 90o
B. 270o
C. 0o
D. 180o
3 The basic circuit element in A.C. circuit which controls current.
A. Resistor only
B. Capacitor only
C. Inductor only
D. All of these
4 The velocity of an oscillating charge as it moves to and fro along a wire is.
A. Changing
B. Constant
C. Infinite
D. zero
5 In purely resistive A.C circuit, instantaneous value of voltage and current:
A. Current lags behind voltage
B. Current leads voltage by π/2
C. Both are in Phase
D. Voltage leads current by Pase θ=π/2
6 The internal resistance of a capacitor is called:
A. Impedance
B. Resistance
C. Reactance
D. Conductance
7 The most common source of an A.C. Voltage is.
A. Motor
B. Cell
C. Generator
D. Thermo couple
8 A capacitor is perfectly insulator for:
A. Direct current
B. Alternating current
C. Direct as well as alternating current
D. None of these
9 The expression P = VI hold only when current and voltage are.
A. In phase
B. Out of phase
C. At right angle to each other
D. At angle of 120 o
10 The slope of q-t curve at any instant of time gives.
A. Voltage
B. Current
C. Charge
D. Botha a and b

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