miwf6kyaje miwf6kyaje

07-10-2021
Physics

contestada

What resistance does a 25 W light bulb have if 12.6 V is applied to it?
(3 marks)

Respuesta :

jcherry99 jcherry99

10-10-2021

Answer:

Explanation:

W = 25 Watts

V = 12.6 Volts

I = ? I is the current in amperes.

Solution

25 = 12.6 * I

I = 25 / 12.6

I = 1.98 amperes

V = 12.6

I = 1.98

R = ??

V = I * R

12.6 = 1.98 * R

R = 12.6 / 1.98

R = 6.35 ohms

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