Second Year Physics Chapter 16 Online MCQ Test for 2nd Year Physics Chapter 16 Alternating Current Preparation

FSC Part 2 Physics
Chapter 16 Test

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Physics FSC Part 2 Chapter 16 Online MCQ's Test

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Question # 1

The basic circuit element in A.C. circuit which controls current.

Question # 2

Xc =

Question # 3

Vrms =

Question # 4

For electromagnetic waves, Maxwell generalized

Question # 5

In metal detector, we use.

Question # 6

The reactance of inductor depends upon

Question # 7

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

Question # 8

In case of capacitor, the unit of reactance is

Question # 9

Resistance of choke is

Question # 10

The unit of impedance is

Question # 11

The circuit which compares the two voltages is.

Question # 12

The inductive reactance of a coil is direction proportional to.

Question # 13

The power factor of RL series circuit is.

Question # 14

At resonance, the behavior of R-L-C series circuit is.

Question # 15

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

Question # 16

The effective value of any sinusoidal alternating current or voltage is

Question # 17

The sum of positive and negative peak value called.

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FSC 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 reactance is the ratio of
A. Vrms/Irms
B. Vrms x Irms
C. Irms/Vrms
D. Vmax x Vrms
2 Power dissipation in A.C circuit is expressed as:
A. P =Irms x Vrms Sinθ
B. IxVCosθ
C. IrmsxVrmsCosθ
D. Irms x Vrms Sin2θ
3 The internal resistance of a capacitor is called:
A. Impedance
B. Resistance
C. Reactance
D. Conductance
4 when an inductor comes close to a metallic object, its inductance is.
A. Decreased
B. Increased
C. Becomes half
D. Becomes 4 times
5 Xc =
A. 1/2πfc
B. 2πfc
C. 2π/fc
D. fc/2π
6 XL=
A. 2πfL
B. 1/2πfL
C. 2πfL
D. fL/2π
7 Main reason for world wide use of A.C. is
A. It is cheaper
B. Transmitted
C. Botha a and b
D. Reaches in short time
8 Phase difference between V and I of an A.C through resistor is.
A. Zero Degree
B. 90 o
C. 80o
D. 120o
9 Resistance of choke is
A. zero
B. Large
C. Very small
D. Infinite
10 An alternating quantity (voltage or current) is completely known if we know its:
A. Maximum
B. Frequency and phase
C. Effective value
D. Both (a) & (b)

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