Question

A 75 A resistor in a circuit has a current flowing through it of 2.0 A. What is

Answer 1

Answer:

The power dissipated by the resistor can be calculated as $P = I^{2} R$ .

Explanation:

• Joules heating law states that any conductor passed with the electric current produces heating effect which is the electric power loss.

• The given circuit has, $R = 75 ohm$ resistor (the unit is wrong i question because resistor's unit is ohm not Ampere).
• Current flowing through the circuit is $I = 2.0 A$.

• By using joules heating theory, $P = I^{2} R$,

                  $or,$   $P = 2^{2} * 75$

                  $or,$   $P= 4*75$

                 $or$,  $P= 300 W$.

• So the power dissipated by the resistor in the circuit is 300 W.