Question

Explain parallel
resistance also drive
its equation ?​

Answer 1

Answer:

Take 'n' resistors, named R₁,R₂,....Rₙ and arrange it in parallel combination as shown in figure.

In a parallel combination, Voltage/Potential Difference(V) remains constant in all resistors and Current (I) changes.

By Ohm's Law,

I = $\frac{V}{R}$

So the sum of current in whole circuit is,

Iₓ = I₁ + I₂ + ..... + Iₙ

$\frac{V}{R_X}=\frac{V}{R_1} + \frac{V}{R_2}+......+\frac{V}{R_n}\\\frac{V}{R_X}=V*(\frac{1}{R_1} + \frac{1}{R_2}+......+\frac{1}{R_n})\\\frac{1}{R_X}=\frac{1}{R_1} + \frac{1}{R_2}+......+\frac{1}{R_n}$

So, Parallel combination of Resistance says that " The reciprocal of effective resistance of a circuit is equal to sum of reciprocal of individual resistance of each resistors "

Answer 2

When two or more resistors are connected so that both of their terminals are respectively connected to each terminal of the other resistor or resistors, they are said to be connected together in parallel.