When we say an appliance "uses up" electricity, we actually are saying that
A)current disappears.
B)electric charges are dissipated.
C)the main power supply voltage is lowered.
D)electrons are taken out of the circuit and put somewhere else.
E)electrical energy changes to thermal energy.

Question

Quizplus · Accepted Answer

When an appliance "uses up" electricity, it means that the electrical energy is converted into another form of energy, such as thermal energy, light energy or kinetic energy. In most cases, the electricity is converted into heat energy, especially in appliances that have heating elements, such as electric stoves, kettles, and hair dryers. Therefore, the best choice for this question is E. Choices A, B, C, and D are not accurate because they suggest that the electricity is lost or destroyed, which is not possible according to the law of conservation of energy.

When We Say an Appliance "Uses Up" Electricity, We Actually