Respuesta :

Here's the solution,

According to OHM's law :

[tex]V = I R[/tex]

where,

  • R = Resistance
  • I = current
  • V = potential difference

=》

[tex]120 = 4 \times R[/tex]

=》

[tex]R = \dfrac{120}{4} [/tex]

=》

[tex]R = 30 \: ohms[/tex]