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 mean value of A.C. in a cycle is.

Question # 2

The highest value reached by the voltage or current in one cycle is called.

Question # 3

At high frequency, the current through a capacitor is

Question # 4

Choke consumes extremely small

Question # 5

The AC system is preferred to DC system because:

Question # 6

The value of capacitive reactance is given by

Question # 7

The peak value of alternating current is 5√2 A. The mean square value of current will be:

Question # 8

SI unit of reactance is.

Question # 9

The A.M. transmission frequencies range from

Question # 10

The internal resistance of a capacitor is called:

Question # 11

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

Question # 12

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

Question # 13

The power factor of RL series circuit is.

Question # 14

X1is low for low frequency Fy but Xc is.

Question # 15

The flow of D.C current is opposed by

Question # 16

The wave form of alternating voltage is a

Question # 17

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

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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 sum of positive and negative peak value called.
A. R.M.S. value
B. P-P value
C. Peak value
D. Average value
2 X1is low for low frequency Fy but Xc is.
A. Zero
B. Low
C. High
D. Same is H
3 In a pure inductive A.C. circuit the current.
A. Lags behind voltage by 90 o
B. Leads the voltage by 90 o
C. In phase with voltage
D. Leads the voltage by 270 o
4 The device which allows only the continuous flow of AC through it is.
A. Inductor
B. Battery
C. Thermistor
D. Capacitor
5 When 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is.
A. 100 Ohm
B. 10 Ohm
C. 1000 Ohm
D. 1 Ohm
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 The combined effect of resistance and reactance is knows as.
A. Inductance
B. Conductance
C. Resistance
D. Impedance
8 The peak value of alternating current is 5√2 A. The mean square value of current will be:
A. 5A
B. 2.5A
C. 5√2A
D. 52
9 An in cudutor may store energy in
A. Its magnetic field
B. Its coil
C. Its electric field
D. A neighboring circuit
10 The unit of impedance is
A. Farad
B. Henry
C. Tesla
D. Ohm

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