A circuit With total resistance R 450 Ohm has a potential V

A circuit With total resistance R= 450 Ohm has a potential V of 6.00 V. What is current I in this circuit? Another circuit with potential K=5.00 V has a current I of 1.78x10^-1 A. What is the resistance R?

Solution

1.

The current in the circuit is calculated as follows:

     I = V/R = 6/450 = 0.0133 A = 1.33e-2 A = 13.3e-3 A = 13.3 mA

2.

The resistance is,

   R = V/I = 5 / 1.78X10^-1 = 28.09 Ohms