an additional wire used along with live and neutral wire is:
cable wire
earth wire
grip wire
hot wire
with the increase in temperature the resistance of pure metals:
increases
decreases
remains same
none of these
The refractive index of ice is:
1.00
1.33
1.31
2.42
Coaxial cable are used to transmit signals:
Magnet
Electric
Mechanical
Both mechanical and magnet
