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GUJCET · Physics · Electrostatic Potential and Capacitance
Out of two copper spheres of the same size, x is hollow while y is solid. If they are charged at the same potential, what can be said about the charges on them ?
- A sphere \(y\) will have more charge.
- B sphere \(x\) will have more charge.
- C charge on both the spheres is zero.
- D charge on both the spheres is equal.
Answer & Solution
Correct Answer
(D) charge on both the spheres is equal.
Step-by-step Solution
Detailed explanation
(D)
for bollow sphere \(V _1=\frac{k Q _1}{ R _1}\)
for solid sphere \(\quad V_2=\frac{k Q_2}{R_2}\)
but \(V_1=V_2\) and \(R_1=R_2\)
so \(Q_1=Q_2\)
for bollow sphere \(V _1=\frac{k Q _1}{ R _1}\)
for solid sphere \(\quad V_2=\frac{k Q_2}{R_2}\)
but \(V_1=V_2\) and \(R_1=R_2\)
so \(Q_1=Q_2\)
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