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MODEL PAPER 6 — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsMODEL PAPER 61 Mark
MCQ
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.
  • ✓
    Assertion and reason both are correct statements and reason is correct explanation for assertion.
  • B
    Assertion and reason both are correct statements but reason is not correct explanation for assertion.
  • C
    Assertion is correct statement but reason is wrong statement.
  • D
    Assertion is wrong statement but reason is correct statement.
✓

Answer

Correct option: A.
Assertion and reason both are correct statements and reason is correct explanation for assertion.
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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