Category: Basic Electrical Mcqs

A. length of heating element should be decreased
B. length of heating element should be increased
C. length of heating element has no effect on heating if water
D. none of the above

A. positive temperature coefficient
B. negative temperature coefficient
C. zero temperature coefficient
D. variable temperature coefficient

A. preventing a short circuit between conducting wires
B. preventing an open circuit between the voltage source and the load
C. conducting very large currents
D. storing very high currents

A. area of the conductor.
B. length of the conductor.
C. type of material.
D. none of these.
(more…)

A. (amperes) ohm
B. joules/seC.
C. amperes x volts
D. amperes/volt

A. voltmeter
B. rheostat
C. wattmeter
D. galvanometer

A. the magnitude of voltage on the conductor
B. the magnitude of current flowing through it
C. both A. and (b)
D. none of the above

A. metallic resistor
B. carbon resistor
C. wire wound resistor
D. variable resistor

A. magnitude and direction of current remains constant
B. magnitude and direction of current changes with time
C. magnitude of current changes with time
D. magnitude of current remains constant

A. 1840
B. 1840
C. 30
D. 4