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MODEL PAPER 6 — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsMODEL PAPER 61 Mark
Question
Assertion: Two concentric charged inner and outer shell are given. The potential difference between the shells depends on charge of inner shell.
Reason: Potential due to charge of outer shell remains same at every point inside the sphere.
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Answer

$(a)$ Assertion and reason both are correct statements and reason is correct explanation for assertion.
Explanation:
Image

$V _{ A }=\frac{1}{4 \pi \varepsilon_0} \frac{Q_1+Q_2}{R_2}$
$V_{ B }=\frac{1}{4 \pi \varepsilon_0}\left(\frac{Q_1}{R_1}+\frac{Q_2}{R_2}\right)$
$V _{ B }- V _{ A }=\frac{1}{4 \pi \varepsilon_0} Q_1\left(\frac{1}{R_1}-\frac{1}{R_2}\right)$

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