Inside a supeerconducting ring, six iden...

Inside a supeerconducting ring, six identical resistors each of resistance R are connected as shown in figure. The equivalent resistances.

A

between 1 and 3 is zero.

B

between 1 and 3 is `R//2`

C

between 1 and 2, 2 and 3, 3 and 1 are all equal

D

between 1 and 2, 2 and 3 , 3 and 1 are all not equal.

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The correct Answer is:

A, C

a., c.
Since 1,2, and 3 all at same potential so equivalent resistance
between 1 and 2, 2 and 3, 3 and 1 are all zero.

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