Question

38.
In the given circuit all resistances are of value R
ohm each. The equivalent resistance between A
and B is (JEE MAIN ONLINE 2018]
(A) 2R
(B) 5R2 (C) 3R
(D) 5R13​

Answer 1

$\huge\mathfrak\pink{\underline{\underline{Answer}}}$

● if we carefully see the given network , there is direct current path from C-D-E-F

(shown in fig})

●so, if current enters a and exit at b ....net current will pass through resistance R1 and R2

your answer is Option A

【Refer to attachment.]

Answer 2

The equivalent resistance between A  and B is 2R.

Value of the resistance = R (Given)

In an electrical circuit, resistance is the function of opposition to the current flow and is measured in ohms.

In the given figure the two points on A and two points on B will have the same potential. This is because they are short circuited.

Hence,

Req = R + R

=2R

Therefore, the resistance between A and B will be 2R.