An immersion heater is rated 836 watt. In what time, it should heat 1 litre of water from `20^@C` to `40^@C` ? `J = 4.18 J//cal`.

An immersion heater is rated 836 watt . It should heat 1 litre of water from 10^(@)C to 40^(@)C in about

Time taken by a 836 W heater to heat 1 litre of water from 10^@C to 40^@C is

Time taken by a 836 W heater to heat one litre of water from 10^@C to 40^@C is

Time taken by a 836 W heater to heat one litre of water from 10^@C to 40^@C is

Time taken by a 836 W heater to heat one litre of water from 10^@C to 40^@C is

True or False: 1 J = 4.18 cal.

The heater coil of an elecric kettle is rated at 2000W,200V, How much time will in take is rasing the temperature of 1 litres of water from 20^(@)C to 100^(@)C . Assuming that only 80% of the total heat energy produced by the heater coil is used in raising the temperature of water. Density of water heater coil is used in raising the temperture of water. density of water = 1g cm^(-3) and specific heat of water = 1 "cal" g^(-1) .^(@)C^(-1) .

The heater coil of an elecric kettle is rated at 2000W,200V, How much time will in take is rasing the temperature of 1 litres of water from 20^(@)C to 100^(@)C . Assuming that only 80% of the total heat energy produced by the heater coil is used in raising the temperature of water. Density of water heater coil is used in raising the temperture of water. density of water = 1g cm^(-3) and specific heat of water = 1 "cal" g^(-1) .^(@)C^(-1) .