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A transformer supplies 60 watts of power to a device that is rated at 20 volts. The primary coil is connected to a 120-volt ac source. What is the current I1I1I_1 in the primary coil

Respuesta :

Answer:

The current in the primary coil would be [tex]0.5\ A[/tex].

Explanation:

Given the power supplied by a transformer is 60 watts.

And the voltage in the primary coil is 120 Volts.

We need to find the current supply in the primary coil.

We will use the formula

[tex]P=V\times I[/tex]

Where,

[tex]P[/tex] is the power in Watts.

[tex]V[/tex] is the voltage in Volts.

[tex]I[/tex] is the current supply in Ampere.

[tex]I=\frac{P}{V}\\\\I=\frac{60}{120}\\ \\I=0.5\ A[/tex]

So, the current in the primary coil would be [tex]0.5\ A[/tex].