Physics · 2019
JEE Main · 9 April 2019, Shift 2 · Q15
The parallel combination of two air filled parallel plate capacitors of capacitance C and nC is connected to a battery of voltage, V. When the…
The parallel combination of two air filled parallel plate capacitors of capacitance C and nC is connected to a battery of voltage, V. When the capacitors are fully charged, the battery is removed and after that a dielectric material of dielectric constant $\displaystyle K$ is placed between the two plates of the first capacitor. The new potential difference of the combined system is :
Official answer
(3)
$\displaystyle \frac{(\mathrm{n}+1) \mathrm{V}}{(\mathrm{~K}+\mathrm{n})}$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.