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

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

Question # 2

An electromagnetic wave goes from air to glass which of the following does not change?

Question # 3

In RLC circuit the energy is dissipated in

Question # 4

In modulation, low frequency signal is known as

Question # 5

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

Question # 6

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

Question # 7

The slope of q-t curve at any instant of time gives.

Question # 8

Electro magnetic waves emitted from radio antenna are.

Question # 9

When 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is.

Question # 10

In three phase A.C. generator the phase difference between each pair of coil is.

Question # 11

Power dissipation in A.C circuit is expressed as:

Question # 12

In metal detector, we use.

Question # 13

X1is low for low frequency Fy but Xc is.

Question # 14

In three phase voltage across any two lines is about.

Question # 15

The unit of impedance is

Question # 16

Which consumes small power.

Question # 17

At high frequency the value of reactance of capacitor will be.

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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 metal detector, we use.
A. L-C circuit
B. R-L circuit
C. R-C circuit
D. RLC series circuit
2 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
3 In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is.
A. Maximum
B. Minimum
C. Zero
D. Negative
4 At resonance frequency, the impedance of RLC series circuit is.
A. Maximum
B. Minimum
C. Zero
D. Infinite
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 XL=
A. 2πfL
B. 1/2πfL
C. 2πfL
D. fL/2π
7 In Pakistan the frequency of A.C. supply is.
A. 50 Hz
B. 60 Hz
C. 45 Hz
D. 70 Hz
8 In three phase A.C supply coils are inclined at an angle of.
A. 0o
B. 90o
C. 120o
D. 80o
9 The Basic circuit element in a D.C. circuits which controls the current and voltage is
A.
Resistor
B. Inductor
C.
Capisitor
D. Transistor
10 Radio frequency choke is
A. Iron cored
B. Air Cored
C. Air as well as iron cored
D. None of these

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