All of the following are equivalent to watt except

The correct answer is D. Ampere/volt.

A watt is a unit of power, which is the rate at which energy is transferred or converted. It is equal to one joule per second.

An ampere is a unit of electric current, which is the flow of electric charge.

A volt is a unit of electric potential difference, which is the difference in electric potential between two points.

An ohm is a unit of electrical resistance, which is the opposition to the flow of electric current.

Option A, joule/second, is equivalent to watt because power is the rate at which energy is transferred or converted, and energy is measured in joules.

Option B, ampere × volt, is equivalent to watt because power is also equal to current times voltage.

Option C, (ampere)2 × ohm, is not equivalent to watt because power is not equal to the square of current times resistance.

Option D, ampere/volt, is not equivalent to watt because power is not equal to current divided by voltage.