OnlineCBT
Physics · PYQ NEET UG 2024
हिन्दीThe terminal voltage of the battery, whose emf is \( 10\text{ V} \) and internal resistance \( 1\ \Omega \), when connected through an external resistance of \( 4\ \Omega \) as shown in the figure is :
Correct answer · Option 1
\( 8\text{ V} \)
Explanation
Current \( I = \frac{E}{R + r} = \frac{10}{4 + 1} = 2\text{ A} \). Terminal voltage \( V = E - I r = 10 - 2(1) = 8\text{ V} \).
