Physics MCQs

Physics Mcqs for Test Preparation from Basic to Advance. Physics Mcqs are from the different sections of Physics. Here you will find Mcqs of Physics and quantum physics subject from Basic to Advance. Which will help you to get higher marks in Physics subject. These Mcqs are useful for students and job seekers i.e MCAT ECAT ETEA test preparation, PPSC Test, FPSC Test, SPSC Test, KPPSC Test, BPSC Test, PTS, OTS, GTS, JTS, CTS, NTS        .

A wire of resistance R is coiled inductively so that its inductance is L. The impedance of the coil at a frequency of f is_______________?

A. (R+2πfL)
B. R+1/2πfL
C. (R2+f2L2)
D. (R2+4π2f2L2)

Ammeter connected in an AC circuit measures______________?

A. The exact value of the current
B. RMS value of the current
C. The net value of the current
D. The peak value of the current

When a pure inductor of inductance L and a pure capacitor of capacitance C are connected in parallel to a sinusoidal potential difference V the potential difference across both L & C will be_______________?

A. Same
B. Different
C. At L will be more than at C
D. At L will be less than at C

What is the self-inductance of a coil in which an induced emf of 2V is set up when the current changes at the rate of 4 As-1 ?

A. 0.5 mH
B. 0.5H
C. 2.0H
D. 8.0H

The frequency of a circuit consisting of a capacitance C and a resistor R is________________?

A. C/R
B. R/C
C. 1/RC
D. 1/ 2RC

A 10Ω electric heater is connected to a 220V 50Hz mains supply. What is the peak value of the potential difference across the heater element ?

A. 220V
B. 220/ 2V
C. 110V
D. 220 √2V

A choke is used as a resistance in_________________?

A. DC circuit
B. AC circuits
C. Both AC and DC circuit
D. Full wave rectifier circuit

At resonance the value of the power factor in an L-C-R series circuit is_______________?

A. Zero
B. 2
C. 1
D. Not definite

An A.C series circuit containing 4Ω resistance and 3Ω inductive reactance. The impedance of the circuit is______________?

A. 1Ω
B. 5Ω
C. 7Ω
D. 7Ω

An inductive coil has a resistance of 100Ω. When an AC signal of frequency 1000Hz is fed to the coil the applied voltage leads the current by 45Ω. What is the inductance of the coil ?

A. 10mH
B. 12mH
C. 16mH
D. 20mH

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