A resistor of resistance 10Ω is connected across a 12V battery for 3min. Using the information given, answer the following:
a. (i) Calculate the electrical power developed in the resistor.
b. (ii) Find the total electrical energy converted into heat during the 3min interval, expressing your answer in joules.
c. (iii) Express the heat obtained in part (ii) in calories. Take 1cal=4.18J.