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# Superposition of Current

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Using superposition, determine the component of the current through R3 that is due to VS2. VS1 = VS2 = 450V.

(see diagram in attached file)

https://brainmass.com/engineering/electrical-engineering/superposition-current-33838

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Using superposition, determine the component of the current through R3 that is due to VS2. VS1 = VS2 = 450V.

Superposition theorem states that,

The total current in any part of a linear circuit equals the algebraic sum of the currents produced by each source separately.

Shorting voltage source Vs1 and keeping only Vs2. Current due to Vs2 only,
Equivalent resistance of 7 ohm, 5 ohm and 10 ohm resistances.

(7 + 5 ) || 10 = 5.45 ohm

Vs2 = [1 + 5.45 + R3] I

Where R3 = 1 ohm; Vs2 = 450 V and I is the current we are asked to find.

I = 450/[7.45] = 60.40 Amps

Is the current that is only due to source Vs2.