Assertion: Two non-ideal batteries are connected in parallel. The equivalent emf is smaller than either of the two emfs. Reason: The equivalent internal resistance is smaller than either of the two internal resistances.

Question

Assertion: Two non-ideal batteries are connected in parallel. The equivalent emf is smaller than either of the two emfs. Reason: The equivalent internal resistance is smaller than either of the two internal resistances. (A) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion. (B) If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion. (C) If the Assertion is correct but Reason is incorrect. (D) If the Assertion is incorrect and Reason is correct.

Tardigrade Admin · Accepted Answer

The equivalent e m f of the two batteries in parallel, e=((e1 r2+r2 r1/r1+r2)) ⋅ e may be; e1 ≤ e ≤ e2. Internal resistance, r=((r1 r2/r1+r2)). This value is smaller than either of r1 and r2.

Q. Assertion : Two non-ideal batteries are connected in parallel. The equivalent emf is smaller than either of the two emfs.
Reason : The equivalent internal resistance is smaller than either of the two internal resistances.

If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.

If the Assertion is correct but Reason is incorrect.

If the Assertion is incorrect and Reason is correct.

The equivalent $e m f$ of the two batteries in parallel,
$e = (\frac{e _{1} r _{2} + r _{2} r _{1}}{r _{1} + r _{2}}) \cdot e$ may be; $e_{1} \leq e \leq e_{2}$ .
Internal resistance, $r = (\frac{r _{1} r _{2}}{r _{1} + r _{2}})$ .
This value is smaller than either of $r_{1}$ and $r_{2}$ .

Q. Assertion : Two non-ideal batteries are connected in parallel. The equivalent emf is smaller than either of the two emfs. Reason : The equivalent internal resistance is smaller than either of the two internal resistances.