Specific resistance of a wire____________________? April 17, 2025 by admin A. will depend on its length B. will depend on its radius C. will depend on the type of material of the wire D. will depend on none of the above
In the following figure, the terminal potential is ___________________ ? April 17, 2025 by admin A. zero B. 2V C. 12V D. 36V
Which one of the following materials is useful for making bulb filaments ? April 17, 2025 by admin A. constantan B. nichrome C. copper D. tungsten
If 1 ampere current flows through 2m long conductor the charge flow through it in 1 hour will be_______________? April 17, 2025 by admin A. 3600C B. 7200C C. 1C D. 2C
Why should a resistance be introduced in a circuit in series deliberately ? April 17, 2025 by admin A. to increase current B. to decrease current C. to control current D. just to give a good look to circuit
All electrical appliances are connected in parallel to each other between the main line and neutral wire to get ______________________? April 17, 2025 by admin A. same current B. same current and potential difference C. different current but same potential difference D. different current and potential differences
Resistance of a conductor depends upon_________________? April 17, 2025 by admin A. nature of conductor B. dimension of conductor C. physical state of the conductor D. all of above
A wire of uniform area of cross-section A length L and resistance R is cut into two parts. Resistivity of each part _________________? April 17, 2025 by admin A. remains the same B. is doubled C. is halved D. becomes zero
When same current passes for same time through a thick and thin wire_________________? April 17, 2025 by admin A. more heat is produced in thick wire B. more heat is produced in thin wire C. no heat is produced in wire D. less heat is produced in thick wire
One kilowatt hour is the amount of energy delivered during _______________? April 17, 2025 by admin A. one second B. one day C. one minute D. one hour
