Question

20. Assertion: Two resistance having value R each, their equivalent resistance is R/2.
Reason: Give resistance is connected in series
(a) Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

(b) Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).

(c) Assertion (A) is true but reason (R) is false.

(d) Assertion (A) is false but reason (R) is true.​

Answer 1

Answer:

ASSERTION IS TRUE BUT REASON IS FALSE

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Answer 2

Answer:

(C) Assertion is true but reason is false

Explanation:

R1 = R

R2 = R

In assertion it is given that the equivalent resistance is R/2

so it has to be connected in parallel and not in series

we can verify , for example when we connect in series...

Equivalent resistance = R1 + R2 = R + R = 2R

Hence to get the equivalent resistance as R/2 , we have to connect the resistors in parallel .

Therefore A is true but R is false