Which one of the following can be taken as the measure of electric intensity ?
A. F/A
B. V/A
C. VF/A
D. q/VA
Electric flux due to a point charge +q is______________?
Electric flux due to a point charge +q is______________?
A. 1/4IIɛ q/r
B. q/ɛ0
C. 1/4IIɛ0. q/r2
D. 4IIɛ0
N/C =_____________?
N/C =_____________?
A. V/A
B. J/V
C. V/m
D. A/m
Photocopier and inject printer are dealt in________________?
Photocopier and inject printer are dealt in________________?
A. Electrostatics
B. Charges in motion
C. Capacitors
D. Electric fields
If a charged rod is brought closer to a gas filled balloon then______________?
If a charged rod is brought closer to a gas filled balloon then______________?
A. Radius decreases
B. Balloon bursts
C. Radius increase
D. Balloon squeezes
If metallic conductor is charged negatively then its weight______________?
If metallic conductor is charged negatively then its weight______________?
A. Remains same
B. First increases then decreases
C. Decreases then increases
D. Increases for a while
If two charges are increased by two times then force_____________?
If two charges are increased by two times then force_____________?
A. Decreases 9 times
B. Increases 9 times
C. Increases 4 times
D. Decreases 4 times
If mica sheet is placed between the plates of a capacitor the capacity_______________?
If mica sheet is placed between the plates of a capacitor the capacity_______________?
A. increases
B. decreases
C. increases then decreases
D. decreases then increases
If an electrons is allowed to move along the field in a non uniform electric field then it will follow__________________?
If an electrons is allowed to move along the field in a non uniform electric field then it will follow__________________?
A. Spiral path
B. Straight line
C. Curved path
D. Circular path
Selenium becomes a conductor in light so it behaves like____________?
Selenium becomes a conductor in light so it behaves like____________?
A. Semiconductor
B. Photodiode
C. Light emitting diode
D. Capacitor