Question

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▶️state and proof Kirchhoffs first law❓​

Answer 1

Answer:

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Refer to the attachment for required answer •••✔️•✔️•✔️

Answer 2

Kirchoff got himself a huge name in physics by simply applying two principles of physics to electrical circuits. This is the first:

At any junction in a circuit, the sum of the currents arriving at the junction = the sum of the currents leaving the junction.

In other words - charge is conserved. If this doesn't happen you'd either get a massive build-up of electrons at a junction in a circuit or you would be creating charge from nowhere! That's not going to happen.

Kirchoff's First Law

Current in = Current out

I1 = I2 + I3 + I4