A heater coil is placed in of water at

PHYSICS · Subjective · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

15\,\Omega

heater coil is placed in

500\,\text{g}

of water at

20^{\circ}\text{C}

. The heater is connected to a

12\,\text{V}

battery for

10\,\text{minutes}

. Assuming no heat loss to the surroundings, calculate the final temperature of the water. (Specific heat capacity of water

= 4.2\,\text{kJ}\,\text{kg}^{-1}\,^{\circ}\text{C}^{-1}