Physics FSC Part 2 Chapter 16 Online MCQ's Test With Answers

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Physics FSC Part 2 Chapter 16 Online MCQ's Test

Sr. # Questions Answers Choice
1 The power factor of RL series circuit is. 0 1 Less then 1 More than one
2 At resonance frequency, the impedance of RLC series circuit is. Maximum Minimum Zero Infinite
3 X1is low for low frequency Fy but Xc is. Zero Low High Same is H
4 Which consumes small power. Inductor Resistor Motor All of these
5 The expression P = VI hold only when current and voltage are. In phase Out of phase At right angle to each other At angle of 120 <sup>o</sup>
6 Power dissipated in a pure inductor is. Large Small Infinite Zero
7 At resonance, the behavior of R-L-C series circuit is. Resistive Capacitive Inductive Modulative
8 The phase angle of a series RLC circult at resonant frequency is 1/2 sigma Zero sigma /4
9 The unit of impedance is. Henry Hertz Ampere Ohm
10 When 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is. 100 Ohm 10 Ohm 1000 Ohm 1 Ohm
11 The combined effect of resistance and reactance is knows as. Inductance Conductance Resistance Impedance
12 The inductive reactance of a coil is direction proportional to. Inductance Resistance Frequency of A.C. Both frequency of A.C. and inductance
13 The device which allows only the flow of D.C. is. Capacitors transformer Inductor Generator
14 when an inductor comes close to a metallic object, its inductance is. Decreased Increased Becomes half Becomes 4 times
15 An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately 50 Hz 100 Hz 80 Hz 120 Hz
16 An in cudutor may store energy in Its magnetic field Its coil Its electric field A neighboring circuit
17 The phase difference between current and voltage in an inductive circuit is. zero 90 <sup>o</sup> 180 <sup>o</sup> 45<sup>o</sup>
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