In a battery with a 200 ampere-hour rating and a 10 ampere load, how is the discharge duration calculated?

To determine the discharge duration of a battery, you take the total capacity of the battery, measured in ampere-hours (Ah), and divide it by the current load, which is measured in amperes (A). In this case, the battery has a capacity of 200 ampere-hours, and it is being discharged at a load of 10 amperes.

By using the formula:

Discharge Duration (in hours) = Battery Capacity (in ampere-hours) / Load (in amperes),

you can calculate how long the battery will last under the specified load. So in this scenario:

200 Ah / 10 A = 20 hours.

This calculation shows that the battery will provide power for 20 hours before it is fully discharged if the load remains constant. The other options do not represent a correct interpretation of how to calculate discharge duration in this context, as they involve operations (multiplication, subtraction, and addition) that do not apply to the relationship between capacity and load in battery discharge scenarios.