The current through a metallic conductor is due to the motion of _________________? April 17, 2025 by admin A. free electrons B. protons C. neutrons D. still under controversy
A wire having very high value of conductance is said to be____________________? April 17, 2025 by admin A. very good conductor B. moderately good conductor C. an insulator D. no specific criterion available
Production of heat due to an electric current flowing through a conductor is given by _________________? April 17, 2025 by admin A. Joule effect B. Joule Thomsons effect C. Comptons effect D. Feed back effect
Three equal resistors connected in series with a source of e m f together dissipate 10 W of power each. What will be the power dissipated if the same resistors are connected in parallel across the same source of e m f ? April 17, 2025 by admin A. 40 W B. 90W C. 100W D. 120W
Thermocouples convert___________________? April 17, 2025 by admin A. heat energy into electrical energy B. heat energy into light energy C. heat energy into mechanical energy D. mechanical energy into heat energy
An immersion heater of 400 watts kept on for 5 hours will consume electrical power of __________________? April 17, 2025 by admin A. 2KWh B. 20KWh C. 6KWh D. 12KWh
Resistance of an ideal insulator is __________________? April 17, 2025 by admin A. infinite B. zero C. finite D. depends upon nature
Reciprocal of resistivity is called__________________? April 17, 2025 by admin A. resistance B. inductance C. conductivity D. flexibility
Circuit which gives continuously varying potential is called _______________________? April 17, 2025 by admin A. complex network B. wheat stone bridge C. potential divider D. all of above
There are three bulbs of 60W 100W and 200W which bulb has thickest filament ? April 17, 2025 by admin A. 100W B. 200W C. 60W D. all
