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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MCQ's Test For Chapter 0 "Physics ICS Part 2 Chapter 16 Online MCQ's Test"

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Physics ICS Part 2 Chapter 16 Online MCQ's Test

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Question # 1

The electromagnetic spectrum contains

Question # 2

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

Question # 3

At high frequency, the current through a capacitor is

Question # 4

In Pakistan the frequency of A.C. supply is.

Question # 5

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

Question # 6

In A.C circuit through a capacitor which one is:

Question # 7

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

Question # 8

An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately

Question # 9

An in cudutor may store energy in

Question # 10

The resonance frequency is given by:

Question # 11

A resistance frequency the impedance of RLC parallel circuit is.

Question # 12

The A.M. transmission frequencies range from

Question # 13

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

Question # 14

The unit of impedance is

Question # 15

The internal resistance of a capacitor is called:

Question # 16

In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.

Question # 17

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

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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 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
2 In case of A.C. through resistor V and I are
A. At 0 o with each other
B. At 180 o with each other
C. At 90 o with each other
D. At 270 o with each other
3 Choke consumes extremely small
A. Current
B. Charge
C. Power
D. Potential
4 The combined effect of resistance and reactance in circuit is called:
A. Impedance
B. Inductance
C. Capacitance
D. None of above
5 Impedance is denoted by:
A. A 
B. Z
C. P
D. Q
6 The AC system is preferred to DC system because:
A. AC voltage can be easily changed in magnitude
B. DC motor angular velocity is affected badly
C. High voltage AC transmission is less efficient
D. Domestic appliance require AC voltage for their operation
7 In RLC circuit the energy is dissipated in
A. R only
B. R and L
C. R and C
D. L and C
8 If the frequency of A.C. supplied is doubled then the capacitive reactance becomes.
A. Half
B. Two
C. Four times
D. One fourth
9 An alternating voltage is given by 20 sin 157 t. Th efrequency of alternating voltage is:
A. 50 Hz
B. 25Hz
C. 100 Hz
D. 75 Hz
10 A resistance frequency the impedance of RLC parallel circuit is.
A. Zero
B. Infinite
C. Maximum
D. Minimum

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