Physics, asked by aditya12345432, 11 months ago

Can someone please answer this question❓

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Answered by prashantofficalraj

Answer:

Explanation:

P=v²/R

100=(220)²/R

R=22*22=484Ω

i=V/R=220/484

the cost will be more for the heater that has higher resistance hence heater A as R=v^2/P therefore lesser power greater resistance hence more cost

aditya12345432: can u do the second subtopic pls

prashantofficalraj: i've mentioned the formula solve it yourself so you can learn it

aditya12345432: no the cost part

aditya12345432: pls

prashantofficalraj: done

aditya12345432: thanks

aditya12345432: can u give formula for if 1 kWh is priced at 30 paise which heater will be costlier if they run for 1hr each

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