To cook food, a microwave oven converts electrical energy into energy. a) electromagnetic b) heat c) mechanical d) nuclear

Option (B) is the correct answer.

Explanation:

When we heat food in a microwave then the electrical energy of microwave produces microwaves which are also part of electromagnetic spectrum.

These microwaves are absorbed by food and as a result microwaves change into heat energy. Therefore, food becomes hot.

Thus, we can conclude that to cook food, a microwave oven converts electrical energy into heat energy.

d: the voltage of the secondary coil is less than that of the primary coil.

im not suree sorry if wrong