xuanjing712 xuanjing712
  • 23-07-2022
  • Physics
contestada

7. A battery is used to light a 24 W electric lamp. The battery provides a charge of 120 C in
60 s.
TH
24W
What is the potential difference across the lamp?

Respuesta :

shikadia96
shikadia96 shikadia96
  • 23-07-2022

Answer:

power p =24 watt

charge q=120 C

time t = 60s

let V be the potential difference

we know that

work done =qV = pt

qV = Pxt

120V = 24 * 60

V = (24 * 60) / 120

V = 12 volts

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