Question

Derive the equation to find out the equivalent resistance for series connection.
Solution please​

Answer 1

Answer:

ANSWER

The diagram of three resistors connected in series combination is shown.

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

​  

 

solution

Explanation: