rayceharvey9
contestada

The current in a certain resistor is 0.60 A when it is connected to a potential difference of 373 V. What is the current in this same resistor if the operating potential difference is 139 V? Answer in units of A.

Respuesta :

As we know that resistance of the resistor will remain same while connecting across different batteries

So here we will say by ohm's law

[tex]R = \frac{V}{i}[/tex]

here we know that

[tex]i = 0.60 A[/tex]

[tex]V = 373 Volts[/tex]

now we have

[tex]R = \frac{373}{0.60} = 621.67 ohm[/tex]

now we have

another voltage as V = 139 volts

now we have current

[tex]i = \frac{V}{R} = \frac{139}{621.67}[/tex]

[tex]i = 0.22 A[/tex]

so final current is 0.22 A

Otras preguntas