Question

what device stores charge on two parallel metal sheets?
a. a wire
b. a capacitor
c. a resistor
d. a battery

Explanation:

A capacitor is a device that stores electrical charge. It typically consists of two parallel metal plates (or sheets) separated by an insulating material (dielectric). A wire conducts electricity. A resistor resists the flow of electric current. A battery is a source of electrical energy (it converts chemical energy to electrical energy), not specifically a device that stores charge on two parallel metal sheets.

Answer:

B. A capacitor