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Which uses more energy, a 250 W TV set i...

Which uses more energy, a 250 W TV set in 1 hr, or a 1200 W toaster in 10 minutes?

Text Solution

Verified by Experts

Given, power of TV (P)=250 W
Time(t)=1hr=`60xx60s=3600s`
Thus, energy used by it=?
We know that energy used by appliance=Power`xx`time
Thus, energy used by TV`=250Wxx3600s=900000J=9xx10^5J`
Power of toaster=1200W
Time (t)=10 minute`=60xx10=600s`
Thus, energy used by toaster`=Pxxt=1200Wxx600s=720000J=7.2xx10^5J`
Thus given TV set will use more energy than toaster
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