Which way round?

The bulbs in these circuits are all identical. The batteries are also identical, but look carefully at the + and - markings on them.

El02TA03ThreeDiagnosticQuestionsPrintSupport01

(a) In which circuit is the bulb brightest? Explain your answer.

(b) In which circuit is the bulb dimmest? Explain your answer.

(a) In which circuit is the bulbs are the same brightness. Which two circuits are these? Explain your answer.

Adding a battery

El02TA03ThreeDiagnosticQuestionsPrintSupport02

Removing a battery

El02TA03ThreeDiagnosticQuestionsPrintSupport03
IoP Logo

Three diagnostic questions on batteries

This document is a part of Supporting Physics Teaching, from the El topic, episode number 02, and the TA thread.

A gentle reminder that it for private and institutional use only.

The location

QR code

http://supportingphysicsteaching.net/