The following question, consist of two words each that have a certain relationship to each other, followed by four lettered pairs of words. Select the lettered pair that has the same relationship as the original pair of words: Energy : Joule

The correct answer is: B. Ammeter : Current

Energy is a measure of the ability to do work. Joule is a unit of energy. An ammeter is a device used to measure electric current. Current is the flow of electric charge.

Axe is a tool used to chop wood. Grind is the act of rubbing something against a rough surface to make it smooth. Power is the rate at which work is done. Ampere is a unit of electric current. Resistance is the opposition to the flow of electric current.

In the original pair, energy is