The potential gradient along the length of a uniform wire is 10 volts per meter. $B$ and $C$ are the

Question

The potential gradient along the length of a uniform wire is 10 volts per meter. $B$ and $C$ are the two points at 30 cm and 60 cm on a meter scale fitted along the wire. The potential difference between $B$ and $C$ will be\

Professor PC Thomas Classes · Answer

Potential gradient $=\frac{	ext { potential difference }}{	ext { dis tance }}$ Potential difference $=$ Pot. gradient $	imes$ distance\ $=10 \frac{\mathrm{~V}}{\mathrm{~m}} 	imes(60-30) \mathrm{cm}=10 \frac{\mathrm{~V}}{\mathrm{~m}} 	imes 0.3 \mathrm{~m}$\