Question

How to use Kirchhoff's law..



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Answer 1

$\huge\mathfrak{Answer:-}$

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♠️ Kirchoff's first law states that "At any junction the sum of current entering the junction is equal to the sum of the current leaving the junction."

♠️ Kirchoff's second law states that "The algebraic sum of change in potential around a closed loop is zero."

♠️Steps to apply Kirchoff's law:-

• Draw current from one or more cell.

• Now choose a loop. The loop should be closed. It can involve any number of cells, resistors, capacitors etc.

• Choose direction of loop either clockwise or anti clockwise.

• Now if uh go from higher potential to lower potential then it is potential drop. Therefore ∆v should be negative.

• If uh go from lower potential to higher potential then ∆v should be positive.

• If inside the cell path is negative then ∆v is positive. If inside the resistor path is opposite to current then ∆v is positive.

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$\huge\mathfrak{Thank you :)}$