Question

If 0.4 A current flows though a bulb which works at 230 V , what is it's power?

Answer 1

Answer:

Current = 0.4 A

Potential Difference = 230 V

Power = Current*Potential Difference

= 230*0.4

= 92W

Hope this helps.

Answer 2

92 watts or joule/sec.

current, i=0.4A

potential difference, V=230V

power =current ✖ potential difference

P = I ✖ V

P=0.4✖230

P=92.0

P=92 watts or 92 joule /sec.

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