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

A resistance frequency the impedance of RLC parallel circuit is.

Question # 2

An A.C. voltmeter reads 220 V, its peak value will be

Question # 3

XL=

Question # 4

An in cudutor may store energy in

Question # 5

In RLC circuit the energy is dissipated in

Question # 6

Unit of impedance is:

Question # 7

The reactance is the ratio of

Question # 8

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

Question # 9

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

Question # 10

If the frequency of A.C. supplied is doubled then the capacitive reactance becomes.

Question # 11

In A.C circuit through a capacitor which one is:

Question # 12

The sum of positive and negative peak value called.

Question # 13

Power dissipation in A.C circuit is expressed as:

Question # 14

An alternating quantity (voltage or current) is completely known if we know its:

Question # 15

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

Question # 16

In chopke coil the resistance XL an resistance R are:

Question # 17

The electromagnetic spectrum contains

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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 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
2 Resistance of choke is
A. zero
B. Large
C. Very small
D. Infinite
3 In LR circiut which one of the following statements is correct?
A. L and R opposes each other
B. R value increases with frequency
C. The inductive reactance increases with frequency
D. The inductive reactance decreases with frequency
4 In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.
A. 90o
B. 270o
C. 0o
D. 180o
5 In frequency modulation which factor changed.
A. Amplitude of charge carriers
B. Frequency of charge carriers
C. Amplitude of signal
D. Frequency of signal
6 The AC system is preferred to DC system because:
A. AC voltage can be easily changed in magnitude
B. DC motor angular velocity is affected badly
C. High voltage AC transmission is less efficient
D. Domestic appliance require AC voltage for their operation
7 The A.M. transmission frequencies range from
A. 540 KHz to 1000 KHz
B. 540 Khz to 1600 KHz
C. 520 KHz TO 1600 KHz
D. 520 KHz TO 1400 KHz
8 An in cudutor may store energy in
A. Its magnetic field
B. Its coil
C. Its electric field
D. A neighboring circuit
9 In purely resistive A.C circuit, instantaneous value of voltage and current:
A. Current lags behind voltage
B. Current leads voltage by π/2
C. Both are in Phase
D. Voltage leads current by Pase θ=π/2
10 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

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  • Butt

    Butt

    31 Mar 2020

    I want to give some test

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  • Rimsha

    Rimsha

    20 Oct 2019

    I am rimsha from kabirwala l am not belong to Lahore plz correct my city name

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  • atiyahassan

    atiyahassan

    20 Nov 2017

    aoa ....how to download it

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  • zia

    zia

    28 Jun 2016

    thankx

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