Question

A space heater primarily converts electrical energy into

A. light energy
B. mechanical energy
C. sound energy
D. thermal energy

Answer 1

D. Thermal energy

Step-by-step explanation:

Answer 2

Answer: D. Thermal energy

Explanation
A space heater uses resistance elements that are heated by an electrical current.

The thermal energy, Q, generated in a resistance of R ohms that carries a current of I is
Q = I²R

This equation assumes that all the electrical energy is converted into thermal energy without losses.