Question

diverse diverse the equivalent resistance for three resistance connected in series​

Answer 1

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R

1

,R

2

and R

3

are the three resistors.

I = electric current flowing through the circuit

V = the potential difference supplied by the battery

Applying the Ohm’s law to the entire circuit, we have

V=IR

On applying Ohm’s law to the three resistors separately, we further have

V

1

=IR

1

V

2

=IR

2

and V

3

=IR

3

The total potential difference across a combination of resistors in series is equal to the sum of potential difference across the individual resistors. That is,

V=V

1

+V

2

+V

3

Therefore, IR=IR

1

+IR

2

+IR

3

or

Equivalent resistance of the combination, R=R

1

+R

2

+R

3

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Answer 2

Answer :

If a number of resistors are joined end to end so that the same current flows through each of them in succession, then the resistors are said to be connected in series.

As shown in the figure, consider three resistors R1​,R2​,R3​ connected in series. Suppose a current I flows through the circuit when a cell of V volt is connected across the combination.