Question

Determine the equivalent (total) resistance for each of the following circuits below​

Answer 1

Answer ⤵️

Ref. image 1

Current always passes through the wire with least resistance. So, after passing through the first resistance along X− terminals it goes to the first resistor along y−terminals, as given in the following diagrams.

Ref image 2

So, the two resistors act as if they are in series.

∴ Total resistance between X and y is:-

R

net

=R+R

=2R

Answer 2

Answer ⤵️

Current always passes through the wire with least resistance. So, after passing through the first resistance along X− terminals it goes to the first resistor along y−terminals, as given in the following diagrams.

Ref image 2

So, the two resistors act as if they are in series.

∴ Total resistance between X and y is:-R

net

=R+R

=2R

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