How much heat does a 40 W bulb generates in one hour ?

Related Mcqs:

The current through a metallic conductor is due to the motion of _________________?

A. free electrons B. protons C. neutrons D. still under controversy...

A wire having very high value of conductance is said to be____________________?

A. very good conductor B. moderately good conductor C. an insulator D. no specific criterion available...

All electrical appliances are connected in parallel to each other between the main line and neutral wire to get ______________________?

A. same current B. same current and potential difference C. different current but same potential difference D. different current and potential differences...

A wire of uniform area of cross-section A length L and resistance R is cut into two parts. Resistivity of each part _________________?

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_________________?

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...