Circuit with 2 voltage sources and 1 current source

ichabodgrant · Mar 12, 2015

Circuit schematic with a 100 mA current source on the left, and two branches in parallel: a 5 V voltage source in series with a 100 Ω resistor carrying current i1, and a 3 V voltage source in series with a 1100 Ω resistor carrying current i2.

Here is the circuit. I have to find the voltage across each resistor and the current i1 and i2.
My attempts are the following:

By KCL,
i₂ + i₁ = 0.1 A

By KVL,
3 - 5 - 100i₁ + 1100i₂ = 0

∴ i₁ = 0.09 A, i₂ = 0.01A
∴ Voltage across 100Ω resistor = 0.09 × 100 = 9 V, voltage across 1100Ω resistor = 0.01 × 1100 = 11 V

Are there any mistakes?

Svein · Mar 12, 2015

Seems OK.

Dhruv · Mar 13, 2015

Correct.

ichabodgrant · Mar 13, 2015

Thank you very much.

Circuit with 2 voltage sources and 1 current source

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