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

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

Question # 2

Choke consumes extremely small

Question # 3

At high frequency, the current through a capacitor is

Question # 4

Electro magnetic waves emitted from radio antenna are.

Question # 5

The wave form of alternating voltage is a

Question # 6

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

Question # 7

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

Question # 8

The power factor of RL series circuit is.

Question # 9

The combined effect of resistance and reactance in circuit is called:

Question # 10

XL=

Question # 11

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

Question # 12

In an LRC circiut, the capacitance is made one-fourth, when an resonance . Then what should be change in inductance, so that the circuit remain in resonance?

Question # 13

At resonance frequency, the impedance of RLC series circuit is.

Question # 14

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

Question # 15

Power dissipated in a pure inductor is.

Question # 16

The phase angle of a series RLC circult at resonant frequency is

Question # 17

The velocity of an oscillating charge as it moves to and fro along a wire 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 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
2 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
3 Radio frequency choke is
A. Iron cored
B. Air Cored
C. Air as well as iron cored
D. None of these
4 Direct current can not flow through.
A. Inductor
B. Resistor
C. Transistor
D. Capacitor
5 At high frequency, the current through a capacitor is
A. Small
B. Infinity
C. Zero
D. Large
6 Phase difference between V and I of an A.C through resistor is.
A. Zero Degree
B. 90 o
C. 80o
D. 120o
7 An in cudutor may store energy in
A. Its magnetic field
B. Its coil
C. Its electric field
D. A neighboring circuit
8 An A.C. voltmeter reads 220 V, its peak value will be
A. 225 V
B. 240 V
C. 311.12 V
D. 300 V
9 In an LRC circiut, the capacitance is made one-fourth, when an resonance . Then what should be change in inductance, so that the circuit remain in resonance?
A. 4 times
B. 1/4 times
C. 8 times
D. 2 times
10 An electromagnetic wave goes from air to glass which of the following does not change?
A. Radio waves
B. X-rays
C. Ultra violet radiation
D. Ultra sond waves

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