Water boils in an electric kettle in 15 minutes after switching on. If the length of the heating wire is decreased to `2//3` of its initial value, then the same amount of water will with the supply voltage in

Water boils in an electric kettle in 15 minutes after switching on. If the length of the heating wire is decreased to 2//3 of its initial value, then the same amount of water will boil with the same supply voltage in

Water boils in an electric kettle in 15 mins, after switching on. If the length of the heating wire is decreased to (1)/(3) of its initial value ,then in how much time will the same amount of water boil with the same supplyvoltage ?

Water boils in an electric kettle in 10 minutes after being switched on .How will you modify the heating coil to boil water is 5 minutes using the same source of power ?

(a) Water boils in an electric kettle in 15 minutes after being swiched on. Using the same mains supply, should the length of the heating element be increased or decreased if the water is to boiled in 10 minutes ? Why ? Does Ohm's law hold good under all conditions ?

Water boils in an electric kettle in 15 min after being switched on . Using the same main supply , should the length of the heating element be increased or decreased if the water is to be boiled in 10 min ? Why ?

Water boils in an electric kettle in 15 min after being switched on . Using the same main supply , should the length of the heating element be increased or decreased if the water is to be boiled in 10 min ? Why ?

A heater boils certain amount of water in 15 minutes. Another heater boils same amount of water in 10 minutes. Time taken to boil same amount of water when both are used in parallel is

A heater boils certain amount of water in 15 minutes. Another heater boils same amount of water in 10 minutes. Time taken to boil same amount of water when both are used in parallel is

Given quantity of water is boiled by an electric heater in 5 min. If supply voltage of heater reduces to half then time taken to boil the same quantity or water will be ...... min. (Assume the resistance of the beater remaining constant)

Given quantity of water is boiled by an electric heater in 5 min. If supply voltage of heater reduces to half then time taken to boil the same quantity of water will be ........... min. (Assume the resistance of the heater remaining constant)