electricity gk Interview Questions and Answers
Ques:- Resistance of a conductor depends on
A. Both the material and the dimensions of the conductor
B. Material of the conductor only
C. Thickness of the conductor only
D. Length of the conductor only
Ques:- The primary cell widely used is
A. Lechlanche cell
B. Lead acid accumulator
C. Dry cell
D. Daniel cell
Ques:- Electromagnets are based on the principle of
A. Chemical effect of current
B. Magnetic effect of current
C. Heating effect of current
D. Mechanical effect of current
Ques:- The emf induced in a circuit is
A. Inversely proportional to the rate of flux change
B. Inversely proportional to the flux change
C. Directly proportional to the rate of change of flux
D. Directly proportional to the change in magnetic flux
Ques:- The direction of magnetic field due to a current element is given by
A. Ampere’s swimming rule
B. Faraday’s first law
C. Fleming’s left hand rule
D. Fleming’s right hand rule
Ques:- Fleming’s right hand rule is used to find the direction of
A. Magnetic field
B. Electric field
C. Induced current
D. Mechanical force
Ques:- The special alloy of nickel and chromium is called as
A. Gun metals
B. Stelloy
C. Nichrome
D. German silver
Ques:- If a body is charged by rubbing it, its weight
A. Remains precisely constant
B. Increases slightly
C. Decreases slightly
D. May increase slightly or may decrease slightly
Ques:- If the rubber rod is rubbed with fur ____ charge is produced.
A. Neutral
B. Positive
C. Negative
D. No change
Ques:- The substances appearing at the cathode are said to be
A. Electropositive
B. Electronegative
C. Positive
D. Neutral
Ques:- Normal power consumed by Air conditioner is
A. 500 watts
B. 600 watts
C. 700 watts
D. 1500 watts