Question

Which of the following occurs over a resistor in a circuit? Current is dissipated. Voltage is dropped. Charge is stored. Electrical energy is stored.

Answer 1

The correct answer is "Voltage is dropped".

In fact, when a current I flows through a resistor of resistance R, the voltage difference between the two ends of the resistor is (Ohm's law):

`\Delta V = RI`
This product is different from zero, so there is a difference of voltage between the two ends of the resistor, and so there is a voltage drop across the resistor.