Give the number of factors which affect the ability of a capacitor to store charge.
SI unit of electric potential is:
watt
volt
coulomb
joule
Each volt of lightening contains energy:
4x106 joules
1000 joules
1000 million joules
10 joules
Power of hair dryer is:
1000 W
750 W
10 W
75 W
If the distance between two point charges is reduced to half, the coulomb’s force become:
Half
Two times
One fourth
Fourth times
If one of the resistors in a parallel circuit is removed, the total resistance will be:
Doubled
Decreased
Increased
Remain same