Specific resistance of a wire____________________?
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
Physics MCQs with Answers
In the following figure, the terminal potential is ___________________ ?
A. zero
B. 2V
C. 12V
D. 36V
Which one of the following materials is useful for making bulb filaments ?
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_______________?
A. 3600C
B. 7200C
C. 1C
D. 2C
Why should a resistance be introduced in a circuit in series deliberately ?
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 ______________________?
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_________________?
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 _________________?
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
One kilowatt hour is the amount of energy delivered during _______________?
A. one second
B. one day
C. one minute
D. one hour
