A2L Item 224
- Description: Identify the consequence of connecting a second bulb in series in a circuit.
- Goal: Hone understanding of series circuits.
- Source: 283-575 Two bulbs in series
- Keywords: Power, Electromagnetism, Circuits
The question for students:
A light bulb is connected to a battery as shown in Figure A below. When a second bulb is connected as shown in Figure B, what happens to the brightness of the original bulb?
- Increases
- Decreases
- Stays the same
- Bulb goes out
- Can’t determine
Commentary for teachers:
Answer
(2) Depending upon the bulbs and battery, the bulbs could appear to go out.