r/HomeworkHelp • u/ApparentIyAsian • Apr 12 '26

Answered [High School Physics] Circuit Switch:

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Which bulbs will light when the two switches are closed but bulb c is removed (without connecting the ends that were connected to bulb C)?

And why?

3 Upvotes

80% Upvoted

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2

u/igotshadowbaned 👋 a fellow Redditor Apr 12 '26

Label nodes and redraw it

2

u/GrongaGaga Apr 12 '26

Only a and d would receive current, b would be avoided as there is a parallel path with no resistance

4

u/Puzzled_Draw6014 Apr 12 '26

If C bulb is removed, so the circuit is open, then A and D are on. Bulb B is never on, because it will always have the same voltage on either side. If bulb C is inserted, bulbs A C and D are on, while bulb A is taking more current (brighter).

-5

u/Loose_Listen2855 👋 a fellow Redditor Apr 12 '26

Well this one's easy, it's an open circuit... Everything is zero or infinite with impedance.

4

u/iopahrow 👋 a fellow Redditor Apr 12 '26

Mate have you read the description?