Using Kirchoff's junction rule for current from a battery.

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rcmango
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Homework Statement



Use Kirchhoff's junction rule to calculate the current supplied by the battery.

Homework Equations



attached a pic.

The Attempt at a Solution



Where do we start?
 

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How much does the voltage drop across each of the 2Ω & 5Ω resistors?
 
Okay, so using series formula, 27V/(2ohms+5ohms) = 3.8V?
 
First off, what does "Kirchhoff's Junction Rule" state?
 
rcmango said:

Homework Statement



Use Kirchhoff's junction rule to calculate the current supplied by the battery.

Homework Equations



attached a pic.

The Attempt at a Solution



Where do we start?

What gneill says !
 

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