A heating coil takes 8 minutes to boil a quantity of water electrically . Now the heating coil is cut into two equal parts which are joined parallel to each other . This parallel combination will heat the same amount of water in how many minutes?
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one heating coil takes 8 minutes to boil a quantity of water electrically . Now the heating coil is cut into two equal parts which are joined parallel to each other . This parallel combination will heat the same amount of water in how many minutes?
time taken by heating one coil to boil water=8 minutes
when one coil divides into two coils 2 the heat of each coil remains same as it was of coil before division into two parts
hence two coil will take half time to boil water.
8/2=4 minutes
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