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- Thread starter Sastronaut
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- #2

lewando

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lewando

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- #4

ehild

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## Homework Statement

Calculate the current through R3.

## Homework Equations

V=IR

## The Attempt at a Solution

my attempt is attached. My question revolves around my answer...is a negative current a legitimate answer? What does it mean?

Your equations 1 and 2 are wrong. Note, that the potential decreases in the direction of the current.

ehild

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Sastronaut

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What should my equation for loop 1 be?

- #6

ehild

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Do the same for the other loop. Note that going in direction opposite to the current, the potential would increase.

ehild

- #7

Sastronaut

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okay I think I am following you so for loop 2 the equation is then -10V+I3R3+I2R2=0?

- #8

ehild

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okay I think I am following you so for loop 2 the equation is then -10V+I3R3+I2R2=0?

Yes.

ehild

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