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) 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 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 ?

In an electric kettle, water boils in 10 minutes after the kettle is switched on. With the same supply voltage if the water is to be boiled in 8 minutes, should the length of the heating elemnet be increased or decreased ? Explain .

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 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 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 with the 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 ?