Question

In the given system a capacitor of plate area A is charged upto charge q. The mass of each plate is m₂. The lower plate is rigidly fixed. Find the value of m₁ so that the system is in equilibrium–

• A. m₂ +
• B. m₂
• C. + m₂
• D. None of these

Answer 1

Answer: (C)

+ m₂

Answer 2

T = F_e + m₂g ….(1) (for upper plate)

T = m₁g ….(2) (for m₁)

m₁g = + m₂g

m₁ = $\frac { \mathrm { q } _ { 2 } } { 2 \mathrm {~A} \varepsilon _ { 0 } \mathrm {~g} }$ + m₂