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 1 litre of water from 10^@C to 40^@C is

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

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 .

The heater coil of an electric kettle is rated as 2000W at 200V. How much time will it take to heat one litre of water from 20^(@)C to 100^(@)C assming that entire electric energy liberated form the heater coil is utilised for heating water? Also calculate the resistance of the coil. Density of water is 1g cm^(-3) .

The heater coil of an electric kettle is rated as 2000W at 200V. How much time will it take to heat one litre of water from 20^(@)C to 100^(@)C assming that entire electric energy liberated form the heater coil is utilised for heating water? Also calculate the resistance of the coil. Density of water is 1g cm^(-3) .

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) .