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

00:00
Question # 1

The most common source of an A.C. Voltage is.

Question # 2

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

Question # 3

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

Question # 4

The value of capacitive reactance is given by

Question # 5

In AC system we generate sine wave form because:

Question # 6

The main use of A.C is

Question # 7

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

Question # 8

The expression P = VI hold only when current and voltage are.

Question # 9

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

Question # 10

The natural frequency of L.C circuit is equal to

Question # 11

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

Question # 12

In modulation, low frequency signal is known as

Question # 13

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

Question # 14

A resistance frequency the impedance of RLC parallel circuit is.

Question # 15

The peak value of A.C source is 20 A, then its rms value will be.

Question # 16

Vrms =

Question # 17

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

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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 internal resistance of a capacitor is called:
A. Impedance
B. Resistance
C. Reactance
D. Conductance
2 The flow of D.C current is opposed by
A. Resistor
B. Induction
C. Capacitor
D. All of these
3 The main use of A.C is
A. Minimum line losses
B. Long distance transmission
C. Stepping up to required voltage only
D. Steeping down to required voltage only
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 The device which allows only the flow of D.C. is.
A. Capacitors
B. transformer
C. Inductor
D. Generator
6 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
7 The device which allows only the continuous flow of AC through it is.
A. Inductor
B. Battery
C. Thermistor
D. Capacitor
8 For electromagnetic waves, Maxwell generalized
A. Gauses law for magnetism
B. Gauses law for eletricity
C. Fradays law
D. Amperes law
9 The mean value of A.C. in a cycle is.
A. 1
B. 0
C. I2
D. Nil
10 The effective value of any sinusoidal alternating current or voltage is
D. None of the above

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