What is effective resistance​?

Answer:

A resistor is a passive electrical two-terminal component that as a circuit element performs electrical resistance. Within circuits, resistors decrease the current flow and lower voltage levels. A number of resistors are joined together in different ways in many electrical devices. All such connected resistors are bound to the Ohms law.

The formula for effective resistance

In a complex circuit consisting of two or more resistors, the calculation of the total resistance of all the resistors in the circuit is the effective resistance. The resistors can be linked in either parallel or serial combinations.

Serice combination

R = R1 + R2 + ……..+ Rn

Parallel combination

R = 1/ R1 + 1/R2 +………………+ 1/Rn

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