Question

What is equivalent resistance to w
between points A and B of the circuit
shown below?

Answer 1

Explanation:

Answer

In this case, the 8 ohms and 4 ohms resistances at the extreme right are connected in series. So their combined resistance is 8+4 = 12 ohms.

The 12 ohms and adjacent 6 ohms resistance are connected in parallel. So the combined resistance is

6

1

+

12

1

1

=

0.25

1

=4 ohm

The two 8 ohms resistances at the bottom are connected in parallel. so, the combined resistance is

8

1

+

8

1

1

=

0.25

1

=4 ohm

This combined 4 ohms resistance is again connected in parallel with another 4 ohms resistance at the bottom end. So the total resistance at this point is

4

1

+

4

1

1

=

0.5

1

=2 ohm

Now, all the combined resistances are connected in series.

Therefore, the total resistance in the circuit is 4+4+2=10 ohms.