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

A resistance frequency the impedance of RLC parallel circuit is.

Question # 2

The unit of impedance is

Question # 3

In chopke coil the resistance XL an resistance R are:

Question # 4

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

Question # 5

The reactance of inductor depends upon

Question # 6

Resistance of choke is

Question # 7

Which consumes small power.

Question # 8

The AC system is preferred to DC system because:

Question # 9

In metal detector, we use.

Question # 10

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

Question # 11

100 micro F capacitor is connects to an AC voltage 24 V and frequency 50 Hz. The reactance of the capacitor is.

Question # 12

Direct current can not flow through.

Question # 13

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

Question # 14

Unit of impedance is:

Question # 15

Phase difference between V and I of an A.C through resistor is.

Question # 16

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

Question # 17

The main use of A.C 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 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 Choke consumes extremely small
A. Current
B. Charge
C. Power
D. Potential
3 Radio frequency choke is
A. Iron cored
B. Air Cored
C. Air as well as iron cored
D. None of these
4 XL=
A. 2πfL
B. 1/2πfL
C. 2πfL
D. fL/2π
5 In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.
A. 90o
B. 270o
C. 0o
D. 180o
6 In metal detector, we use.
A. L-C circuit
B. R-L circuit
C. R-C circuit
D. RLC series circuit
7 The wave form of alternating voltage is a
A. Cotangent curve
B. Cosine curve
C. Sine curve
D. Tangent curve
8 The phase difference between current and voltage in an inductive circuit is.
A. zero
B. 90 o
C. 180 o
D. 45o
9 The natural frequency of L.C circuit is equal to
10 100 micro F capacitor is connects to an AC voltage 24 V and frequency 50 Hz. The reactance of the capacitor is.
A. 30.8 Ohm
B. 31.8 Ohm
C. 34.8 Ohm
D. 40 Ohm

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