A cylindrical resistor of radius 6 mm and length 2 cm is made of a material with a resistivity of 4 X10-5 Ωm at a temperature of 26.2 °C. The resistor operates for 23 seconds with a energy dissipation rate of 1.4 W. The current is uniformly distributed throughout the resistor.
a) What is the current density of the resistor?
J = A/m2
70.34208148 NO- Wrong Answer????
b) What is the potential difference between the two ends of the resistor?
ΔV= V
11.57 NO- again wrong Answer???
c) What is the magnitude of the electric field in the resistor?
E = V/m