railway RRB Technician Grade 1 Mock Test 2024 Physics Current, Resistance and Electricity Power in Electric Circuits
In an electric circuit, a wire of resistance 10 Ω is used. If this wire is stretched to a length double of its original value, the current in the circuit would become :
1
half of its original value.
2
double of its original value.
3
one-fourth of its original value.
4
four times of its original value.