Question

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

the power dissipated by the resistor? (Use P-OV/-/R-V
has a current dowing through you

Answer 1

The power dissipated by the resistor can be calculated as
`P = I^(2) R` .

Step-by-step 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.