A lamp for which converts 70 W out of every 20 W into thermal energy the lamp is being used for the sole purpose of the lighting room. calculate the efficiency

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asked Dec 14, 2023 225k views

11 votes

A lamp for which converts 70 W out of every 20 W into thermal energy the lamp is being used for the sole purpose of the lighting room.

calculate the efficiency

Physics
high-school

Bigosmallm asked

by Bigosmallm

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1 Answer

9 votes

Answer:

71 % eff

Step-by-step explanation:

if 50 out of 70 watt goes to making light

50/70 = 71 %

PRATHEESH PC answered Dec 20, 2023

by PRATHEESH PC

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