find the equivalent resistance b/w a and b
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Answer:
2R
Explanation:
since potential drop between AC is equal to AD thus CD branch will become ineffective.
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answer : r /2
explanation : the upper part acts as a wheatstone bridge ....hence the resistance in the middle is not counted ....after that 2r ,2r and an r are in parallel ......so at the end after calculating it comes out to be r/2 .
explanation : the upper part acts as a wheatstone bridge ....hence the resistance in the middle is not counted ....after that 2r ,2r and an r are in parallel ......so at the end after calculating it comes out to be r/2 .
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