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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Physics ICS Part 2 Chapter 16 Online MCQ's Test

00:00
Question # 1

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

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

At high frequency the value of reactance of capacitor will be.

Question # 6

XL=

Question # 7

The wave form of alternating voltage is a

Question # 8

The value of capacitive reactance is given by

Question # 9

An alternating quantity (voltage or current) is completely known if we know its:

Question # 10

The power factor of RL series circuit is.

Question # 11

Impedance is denoted by:

Question # 12

High frequency radio wave is called as

Question # 13

The phase angle of a series RLC circult at resonant frequency is

Question # 14

The A.M. transmission frequencies range from

Question # 15

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

Question # 16

Radio frequency choke is

Question # 17

During each cycle A.C. voltage reaches a peak value.

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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 Power dissipation is a pure inductive or in a pure capacitance circuit is:
A. 106
B. 0
C. 10
D. Maximum
2 In A.C circuit of inductor which one is true
A. Voltage leads current by phase angle π/2
B. Voltage lags current by π/2
C. Current leads voltage by π/2
D. Both remain in phase
3 The peak to peak value of alternating voltage is
A. 2Vo
B. Vo
D. None of these
4 The wave form of alternating voltage is a
A. Cotangent curve
B. Cosine curve
C. Sine curve
D. Tangent curve
5 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
6 An in cudutor may store energy in
A. Its magnetic field
B. Its coil
C. Its electric field
D. A neighboring circuit
7 when an inductor comes close to a metallic object, its inductance is.
A. Decreased
B. Increased
C. Becomes half
D. Becomes 4 times
8 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
9 In Pakistan the frequency of A.C. supply is.
A. 50 Hz
B. 60 Hz
C. 45 Hz
D. 70 Hz
10 In metal detector, we use.
A. L-C circuit
B. R-L circuit
C. R-C circuit
D. RLC series circuit

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