what are kirchhoff's law?explain them.
Kirchhoff’s First Law − Junction Rule
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The algebraic sum of the currents meeting at a point in an electrical circuit is always zero.
I1, I2 I3, and I4
Convention:
Current towards the junction − positive
Current away from the junction − negative
I3 + (− I1) + (− I2) + (− I4) = 0
Kirchhoff’s Second Law − Loop Rule
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In a closed loop, the algebraic sum of the emfs is equal to the algebraic sum of the products of the resistances and current flowing through them.
For closed part BACB,
E1 − E2 = I1R1 + I2 R2 − I3R3
For closed part CADC,
E2 = I3R3 + I4R4 + I5R5