electrostatics Interview Questions and Answers
Ques:- Which of the following have positive temperature coefficient of resistance?
A. Metals
B. Mica
C. Glass
D. All the above
Ques:- All the magnetic phenomena is due to circulating electric current states ____
A. Joule’s hypothesis
B. Ampere’s hypothesis
C. Coulomb’s hypothesis
D. Wheatstone’s hypothesis
Ques:- The chemical process of obtaining current from a secondary cell is called
A. Charging
B. Discharging
C. Recharging
D. None of the above
Ques:- Wheatstone’s bridge is an application of
A. Kirchoff’s law
B. Faraday’s law
C. Ohm’s law
D. None of the above
Ques:- Bodies which allow the charge to pass through them are called ____
A. Conductors
B. Dielectrics
C. Insulators
D. Semiconductors
Ques:- Fuse wire is an alloy of
A. Copper and aluminium
B. Copper and Tin
C. Lead and Chromium
D. Tin and Lead
Ques:- _____ is an instrument to measure potential difference between the two ends of a current carrying conductor.
A. Ammeter
B. Galvanometer
C. Ohmmeter
D. Voltmeter
Ques:- The direction of the magnetic in a current carrying conductor is given by ____
A. Maxwell’s right hand cork screw rule
B. End rule
C. Tangent law
D. Biot-Savart law
Ques:- Who discovered that a magnetic field is associated with a current carrying conductor?
A. Faraday
B. Oersted
C. Huygens
D. Kirchoff
Ques:- _____ of the material liberates the outer electrons from individual atoms.
A. Thermodynamic internal energy
B. Vibrational energy
C. Kinetic energy
D. Potential energy
Ques:- ____ first introduced the electrochemical battery.
A. James Watt
B. Volta
C. Faraday
D. Stephen
Ques:- Peltier coefficient at a junction of a thermocouple depends on ____
A. The charge that passes through the thermocouple
B. The temperature of the junction
C. The time for which current flows
D. The current in the thermocouple
Ques:- The substances which acquire charges on rubbing are said to be ____
A. Electromagnetised
B. Magnetized
C. Electrified
D. None of the above
Ques:- Capacitors, Van de Graff generators work on the principle of ___
A. Action of points
B. Static induction
C. Dynamic induction
D. Electrostatic induction