# Can anyone show me how to work out the current flowing through the 32 ohm resistor using kirchoffs law and another method?

#### JohnA12

Joined Mar 8, 2021
9

#### Ramussons

Joined May 3, 2013
1,395
2 steps.
Replace 5 volt battery with a wire. Calculate I_32_ohm. ----- 1
Replace the 12 volt battery with a wire. (Restore the 5 volt battery !). Calculate I_32_ohm. ------2

Add 1 and 2. Thats it.

#### neonstrobe

Joined May 15, 2009
190
Aren't homework help seekers supposed to show their best effort before being helped?
Anyway that is one method...

#### RBR1317

Joined Nov 13, 2010
712
To find the current flowing through the 32 ohm resistor you need to find the voltage across the 32 ohm resistor. So ground one side of the 32 ohm resistor, then label the other side as Vx. Solve for Vx using Kirchoff's Current Law (the sum of the three currents flowing at node Vx must be zero.) Note that in the attached diagram the components are slightly re-arranged to make it easier to visualize the currents that are flowing. This approach to getting a solution might also be called Nodal Analysis.

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#### The Electrician

Joined Oct 9, 2007
2,971
To find the current flowing through the 32 ohm resistor you need to find the voltage across the 32 ohm resistor. So ground one side of the 32 ohm resistor, then label the other side as Vx. Solve for Vx using Kirchoff's Current Law (the sum of the three currents flowing at node Vx must be zero.) Note that in the attached diagram the components are slightly re-arranged to make it easier to visualize the currents that are flowing. This approach to getting a solution might also be called Nodal Analysis.
What software did you use to create your schematic?

#### RBR1317

Joined Nov 13, 2010
712
What software did you use to create your schematic?
LibreOffice Draw. For simple schematics I usually take a screenshot then crop the image with GIMP; otherwise, print as PDF. My favorite font for labeling drawings is Lucida Fax. Over the years I have created a library of symbols as I needed them.

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