The unit ―henry‖ is equivalent to:

Explanation

The unit "henry" (H) is used to measure inductance in the International System of Units (SI). It is defined as the inductance of a circuit in which an electromotive force of one volt is induced when the current through the circuit changes at a rate of one ampere per second. Thus, the unit "henry" is equivalent to "volt-second/ampere." This reflects the relationship between electromotive force, current change rate, and inductance. Other options provided, such as "volt/second," "ohm," and "ampere volt/second," do not accurately describe inductance. "Volt/second" pertains to the rate of change of electric potential, "ohm" is the unit for resistance, and "ampere volt/second" does not correspond to a recognized unit in this context.