Question

1. the open - circuit voltage of a fully - charged 12 - volt battery should be:

ca 9.6v
cb 12.0v
cc 12.6v
cd 14.0v

Explanation:

Step1: Understand battery voltage basics

A fully - charged 12 - volt battery has an open - circuit voltage higher than its nominal voltage due to chemical reactions and internal resistance considerations when not in a circuit.

Step2: Recall typical values

For a 12 - volt lead - acid battery (common type), the open - circuit voltage when fully charged is around 12.6V.

Answer:

C. 12.6V