Question

two resistors of 4 ohms and 8 ohms are connected in series and parallel. find the effective resistance in both cases ?​

Answer 1

Answer:

effective resistance in series is 12

Explanation:

R = r1 +r2

r1=4 ohms

r2=8 ohms

R=4+8=12ohms

effective resistance in parallel

1/4+1/8=1/R

4+8/8=1/R

3/2=1/R

R=2/3ohms