Question

find the equivalent resistence​

Answer 1

Solution -

We have to calculate the equivalent resistance between A and B. B isnt marked in the original diagram but should be here ( see the attachment)

ED = 30 ohm

AC = 30 ohm

ED and AC are in parallel .

Equivalent resistance across ED and AC = 30×30/(30+30) = 900/60 = 15 ohm .

This is in series with one of the other 15 ohm resistor .

Now it becomes 30 ohm parallel with 15 ohm .

Equivalent Resistance = 30×15/(30+15) = 450/45 = 10 ohm .

Answer - The equivalent resistance is 10 ohm .

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