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Section 25.13 Challenge - Circuits: Intro
Explanation 25.13.1. Circuit I.
Figure 25.13.1. Circuit diagram. The circuit above shows four identical bulbs connected to an ideal battery. The switch is initially closed.
Rank the bulbs according to brightness, in order from brightest to dimmest. If two bulbs have the same brightness, indicate that explicitly.
When the switch is opened, will bulb A get brighter, get dimmer, or remain the same brightness?
When the switch is opened, will bulb B get brighter, get dimmer, or remain the same brightness?
Explanation 25.13.2. Circuit II.
Figure 25.13.2. Circuit diagram. Rank the light bulbs shown above according to brightness. If any bulb does not light, or if you do not have enough information, state so explicitly.
In particular, explain your reasoning for how you ranked each of the following pairs of bulbs:
A & B
A & C
A & D
Tip.
You are strongly encouraged to use voltage diagrams to help your reasoning.
Subsection Metacognitive Reflection
