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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

Respuesta :

Answer:

The power dissipated by the resistor can be calculated as [tex]P = I^{2} R[/tex] .

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, [tex]R = 75 ohm[/tex] resistor (the unit is wrong i question because resistor's unit is ohm not Ampere).
  • Current flowing through the circuit is [tex]I = 2.0 A[/tex].
  • By using joules heating theory, [tex]P = I^{2} R[/tex],

                  [tex]or,[/tex]   [tex]P = 2^{2} * 75[/tex]

                  [tex]or,[/tex]   [tex]P= 4*75[/tex]

                 [tex]or[/tex],  [tex]P= 300 W[/tex].

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