Judge the real battery claims

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   The potential difference across a battery is smaller once it sits in a complete circuit.

2. Statement is true

   No

   Statement

   The emf of a battery rises as the current drawn by the load rises.

3. Statement is true

   Yes

   Statement

   A real battery has internal resistance as well as an emf.

4. Statement is true

   No

   Statement

   Adding more resistance to a circuit increases the current the battery delivers.

5. Statement is true

   Yes

   Statement

   The terminal potential difference equals the emf only when the current is very small.

6. Statement is true

   Yes

   Statement

   The gap between emf and terminal potential difference is called the lost volts.

Instructions

Tap true or false for each claim about a real battery with internal resistance.

Explanation