Question

Example 21. Find the equivalent resistance between
point A and B in the, = R1= 10 Ω,R2=10 Ω,R3=5 Ω,R4=1 Ω​

Answer 1

Explanation:

so the equivalent resistance is calculated as follows :-

if the resistors are connected in series

R = R1 + R2 + R3 + R4

= 10 + 10 + 5 + 1

= 26 ohms

if the resistors are connected in parallel

1/R = 1/R1 + 1/R2 + 1/R3 + 1/R4

1/R = 1/10 + 1/10 + 1/5 + 1/1

1/R = 1 + 1 + 2 + 10 / 10. [ by taking LCM ]

1/R = 14/10

therefore , R = 10/14 = 0.71

thanks