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

[rcmango]

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?

 

[SammyS]

How much does the voltage drop across each of the 2Ω & 5Ω resistors?

 

[rcmango]

Okay, so using series formula, 27V/(2ohms+5ohms) = 3.8V?

 

[gneill]

First off, what does "Kirchhoff's Junction Rule" state?

 

[PeterO]

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 !