Potential difference across the end of a wire is 0.6V which carries a current of 8 amperes. Find the resistance of the wire.

26 A heater coil connected to a 220 V ha a resistance of 150Ω . How long will it take for this coil to heat 1 kg of water from 20^o C to 60^o C, assuming that all the heat is taken up by the water? 27 How much current will an electric heater draw from a 220 volt line if the resistance of the heater is 44 ohms? 29 In the given circuit, calculate the current shown by the ammeter and total resistance of the circuit. 30 An electric bulb of 40W is connected to a source of 2 20v. What will be the current drawn and the resistance of the bulb?