A voltage of 21.0V across the terminals of a device produces a current of 3.00 mA through the device. What is the resistance of the device?
llm
Answered on
According to ohm's law ,that the voltage across a conductor is directly proportional to the current flowing through it.
V = IR
I = 3.00mA = 3 *10³
21 = 3*10³ × R
R = 21/ 3×10³
R= 7000 ohm's