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

Question # 2

The flow of D.C current is opposed by

Question # 3

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

Question # 4

In AC system we generate sine wave form because:

Question # 5

Resistance of choke is

Question # 6

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

Question # 7

The reactance is the ratio of

Question # 8

An in cudutor may store energy in

Question # 9

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

Question # 10

The unit of impedance is.

Question # 11

The peak value of A.C source is 20 A, then its rms value will be.

Question # 12

Power dissipation is a pure inductive or in a pure capacitance circuit is:

Question # 13

The natural frequency of L.C circuit is equal to

Question # 14

The phase difference between current and voltage in an inductive circuit is.

Question # 15

Xc =

Question # 16

Direct current can not flow through.

Question # 17

The sum of positive and negative peak value called.

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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 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 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
3 An in cudutor may store energy in
A. Its magnetic field
B. Its coil
C. Its electric field
D. A neighboring circuit
4 The reactance is the ratio of
A. Vrms/Irms
B. Vrms x Irms
C. Irms/Vrms
D. Vmax x Vrms
5 The power factor of RL series circuit is.
A. 0
B. 1
C. Less then 1
D. More than one
6 In RLC circuit the energy is dissipated in
A. R only
B. R and L
C. R and C
D. L and C
7 The circuit which compares the two voltages is.
A. LDR
B. Sensor
C. Comparator
D. Logic gate
8 The phase angle of a series RLC circult at resonant frequency is
A. 1/2
B. sigma
C. Zero
D. sigma /4
9 Main reason for world wide use of A.C. is
A. It is cheaper
B. Transmitted
C. Botha a and b
D. Reaches in short time
10 If Vrms be the root mean square value of emf then its peak to peak value is given by

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