[" Two heater coils separately take "10" min and "5" min to boil a certain amount of water.If both the "],[" coils are connected in series,the time taken will be "]

Two heater coils separately take 10 minute and 5 minute to boil certain amount of water . If both the coils are connected in series, the time taken will be

Two heater coils separately take 10 minutes and 5 minutes to boil a certain amount of water.Find the time taken by both the coils connected in series to boil the same amount of water.

A coil takes 15 min to boil a certain amount of water, another coil takes 20 min for the same process. Time taken to boil the same amount of water when both coil are connected in series

A coil takes 15 min to boil a certain amount of water, another coil takes 20 min for the same process. Time taken to boil the same amount of water when both coil are connected in series

Two coils of power 60 W and 100 W and both operating at 220 V takes time 2 min and 1.5 min separately to boil certain amount of water. If they are joined (i) in series and (ii) in parallel, then find the ratio of time taken by them to boil the same water in the two cases.

An electric kettle has tow heating coils. When one of the coils connected to an AC source, the water in the kettle boils in 10 min. when the other coil is used the water boils in 40 min. if both the coils are connected in parallel, the time taken by the same quantity of water of boil will be

An electric kettle has tow heating coils. When one of the coils connected to an AC source, the water in the kettle boils in 10 min. when the other coil is used the water boils in 40 min. if both the coils are connected in parallel, the time taken by the same quantity of water of boil will be

An electric kettle has tow heating coils. When one of the coils connected to an AC source, the water in the kettle boils in 10 min. when the other coil is used the water boils in 40 min. if both the coils are connected in parallel, the time taken by the same quantity of water of boil will be

A heating coil takes of 6 min to boil certain amount of milk. Another heating coil takes 3 min to boil same amount of milk. Supply voltage is same. When the coils are connected in parallel,time taken to boil same amount of milk is