Question

What is the resistance between A and B in the figure given below ? ​

Answer 1

Answer:

we know that they are in the parallel combination

then it is easy to calculate the value of resistance

1/R= 1/R¹ +1/R²

1/R= 1/30 +1/10

1/R = 1+3/30 (by LCM)

1/R = 4/30

1/R= 2/15

2R/15=1

R=15/2

therefore, the resistance is 15/2 Ohm