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 highest value reached by the voltage or current is one cycle is called:

Question # 2

The effective value of any sinusoidal alternating current or voltage is

Question # 3

A resistance frequency the impedance of RLC parallel circuit is.

Question # 4

The resonance frequency is given by:

Question # 5

The wave form of alternating voltage is a

Question # 6

An A.C. voltmeter reads 220 V, its peak value will be

Question # 7

The unit of impedance is

Question # 8

In three phase voltage across any two lines is about.

Question # 9

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

Question # 10

In frequency modulation which factor changed.

Question # 11

The inductive reactance of a coil is direction proportional to.

Question # 12

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

Question # 13

Power dissipation in A.C circuit is expressed as:

Question # 14

If Vrms be the root mean square value of emf then its peak to peak value is given by

Question # 15

The device which allows only the continuous flow of AC through it is.

Question # 16

Choke consumes extremely small

Question # 17

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

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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 In three phase voltage across any two lines is about.
A. 220 V
B. 230 V
C. 400 V
D. 430 V
2 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
3 In AC system we generate sine wave form because:
A. It san be easily draw
B. It produces least disturbance in electrical circuits
C. It is nature standard
D. Other waves cannot be produced easily
4 The combined effect of resistance and reactance is knows as.
A. Inductance
B. Conductance
C. Resistance
D. Impedance
5 In three phase A.C supply coils are inclined at an angle of.
A. 0o
B. 90o
C. 120o
D. 80o
6 The A.M. transmission frequencies range from
A. 540 KHz to 1000 KHz
B. 540 Khz to 1600 KHz
C. 520 KHz TO 1600 KHz
D. 520 KHz TO 1400 KHz
7 An in cudutor may store energy in
A. Its magnetic field
B. Its coil
C. Its electric field
D. A neighboring circuit
8 The Basic circuit element in a D.C. circuits which controls the current and voltage is
A.
Resistor
B. Inductor
C.
Capisitor
D. Transistor
9 If Vrms be the root mean square value of emf then its peak to peak value is given by
10 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

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