Question

Please help me with this physics question :P

Answer 1

Question :

A lightbulb need 300 J to stay on for 5 Seconds. How much power was needed to keep the lightbulb on for this amount of time?

Answer :

We know that,

`\: { \boxed{ \sf{Power = (Work)/(time)}}}`

Where,

• Work = 300 J
• time = 5 seconds

`\longrightarrow \sf (300)/(5) \\ \\ \longrightarrow \sf60 \: watts \\ \\`

Therefore, 60 watts power is needed to keep the lightbulb on.