a potentiometer wire have a resistivity of 10^9 ohm-cm and area of cross section is 10^(-2) cm^2. if a current of 0.01mA passes through the wire. potential gradient is1)10^9 v/m2) 10^10 v/m3) 10^11 v/m4) 10^8 v/m

rani j , 13 Years ago

Grade 12