Question

What is the effective resistance between points A and B

options :
1. 7/3 R
2. 3R
3. 5R
4. 4/3 R​

Answer 1

Answer:

1. 7/3 R

Step-by-step explanation:

in parallel

1/Req. = 1/R + 1/R + 1/R

1/Req. = (1+1+1)/R

1/Req. = 3/R

Req. = R/3. ..taking reciprocal of both sides

now in series

total resistance= R+ R/3 +R

=7R/3