Electric Circuits
If a resistor is connected across the voltage source and the frequency of voltage and current wave form is 50Hz, then what is frequency of instantaneous power

 100 Hz.
 150 Hz.
 0 Hz.
 50 Hz.

ANSWER DOWNLOAD EXAMIANS APP

Electric Circuits
Two electric bulbs have transparent filament of same thickness. It one of them gives 60 W and other gives 100 W, then-

 60 W lamp filament has longer length.
 60 W lamp filament has shorter length.
 100 W lamp filament has longer length.
 60 W and 100 W lamp filament have equal length.

ANSWER DOWNLOAD EXAMIANS APP