Circuit diagram questions -- 3 Light Bulbs in a 120V circuit

AI Thread Summary
The discussion centers around verifying current values for a circuit with three light bulbs in a 120V setup. The user presents current readings of 150 A, 150 A, 300 A, and 0 A, seeking confirmation of their accuracy. Participants emphasize that a bulb drawing 150 A would be dangerous, as it could trip breakers or cause fires, and suggest interpreting the values as 150 mA instead. Clarification is provided that using milliamps is acceptable for the exercise to avoid confusion. The conversation highlights the importance of understanding current ratings in electrical circuits.
joshqg
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Homework Statement
In the circuit shown, all of the light bulbs are identical. a) If the ammeter, A1, reads 150 A when the switch S is open. What do A2,A3,A4,A5 read? b) If the switch is closed what do they read?
Relevant Equations
Kirchhoff law
I have A2 as 150, A4 as 150, A5 as 300 and A3 as 0. I just need these answers checked to make sure I’m right.
 

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joshqg said:
to make sure I’m right.
That's not what PF is for. Hire a lawyer. Better: convince yourself :smile: .

Anyway, there is a question a) and a b). Which do you answer ?
 
A bulb that draws 150 A will trip a circuit breaker or blow a fuse or start a fire. There is no breaker or fuse in the circuit shown so if you've tried this at home, consider hiring the lawyer that @BvU mentioned. :oldsmile:
 
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:smile: we change the playing field: where it says 150 A, read 150 mA, and proceed with the exercise.
Are the numbers quoted meant for part a) ?
 
BvU said:
:smile: we change the playing field: where it says 150 A, read 150 mA, and proceed with the exercise.
Are the numbers quoted meant for part a) ?
Ya we're allowed to use mA for this question, just didn't want any confusion.
 
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