A circuit containing three switches, labeled S1, S2, and S3.
Find the current at a for all possible combinations of switch settings.
Put = 170 V, R1 = 30.0 , and R2 = 10.0 .
Assume that the battery has no resistance.
(S1, S2, and S3 all open)
(S1 closed, S2 and S3 open)
(S2 closed, S1 and S3 open)
(S3 closed, S1 and S2 open)
(S1 open, S2 and S3 closed)
(S2 open, S1 and S3 closed)
(S3 open, S1 and S2 closed)
(S1, S2, and S3 all closed)
Figure Shown here: http://www.webassign.net/hrw/28_37.gif" [Broken]
The Attempt at a Solution
I'm confused on what it means when a circuit is open or closed, so I don't know how that affects the current.
Also, I don't know how to account for the 2 resistances.
Please help! :)
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