Current Electricity
In the case of direct current

Magnitude and direction of current remains constant
Magnitude of current remains constant
Magnitude of current changes with time
Magnitude and direction of current changes with time

ANSWER DOWNLOAD EXAMIANS APP

Current Electricity
When current flows through heater coil it glows but supply wiring does not glow because

Supply wires are made of superior material
Current through supply line flows at slower speed
Supply wiring is covered with insulation layer
Resistance of heater coil is more than the supply wires

ANSWER DOWNLOAD EXAMIANS APP