Question

A resistance R2 is connected in parallel with
a resistance R1 What resistance R3 must be
connected in series with the combination of
R, and R2 so that the equivalent resistance is
equal to the resistance R1-
​

Answer 1

Answer:

In series:

Since, in series combination the values of resistances are added, the value of equivalent resistance is larger than the largest value of resistance in the combination of resistors.

In parallel:

In parallel connection, the value of equivalent resistance is smaller than the smallest value of resistance in the combination of resistors.

The expression for equivalent resistance in parallel combination will be,

Explanation:

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