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

SI unit of reactance is.

Question # 2

The resonance frequency is given by:

Question # 3

The Basic circuit element in a D.C. circuits which controls the current and voltage is

Question # 4

Unit of impedance is:

Question # 5

The internal resistance of a capacitor is called:

Question # 6

In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is.

Question # 7

The circuit which compares the two voltages is.

Question # 8

Xc =

Question # 9

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

Question # 10

For electromagnetic waves, Maxwell generalized

Question # 11

The effective value of any sinusoidal alternating current or voltage is

Question # 12

Electron vibrating 94,000 times each second will produce radio waves of frequency.

Question # 13

The device which allows only the flow of D.C. is.

Question # 14

The main reason for world wide use of A.C is because:

Question # 15

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

Question # 16

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

Question # 17

In frequency modulation which factor changed.

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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 The combined effect of resistance and reactance is knows as.
A. Inductance
B. Conductance
C. Resistance
D. Impedance
3 Choke consumes extremely small
A. Current
B. Charge
C. Power
D. Potential
4 Electro magnetic waves emitted from radio antenna are.
A. Stationary
B. Longitudinal
C. Transvers
D. Both a and b
5 In chopke coil the resistance XL an resistance R are:
A. XL=R
B. XL<<R
C. XL>>R
D. XL=
6 At high frequency the value of reactance of capacitor will be.
A. Small
B. Zero
C. Large
D. Infinite
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 Io is the peak value of current, then its root mean square value is given by
B. 2 Io
C. Io
D. 0.7 Io
9 In modulation, low frequency signal is known as
A. Carrier wave
B. fluctuated signal
C. Modulated carrier signal
D. Modulation signal
10 The circuit which compares the two voltages is.
A. LDR
B. Sensor
C. Comparator
D. Logic gate

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