Question

If the slab is brought inside the parallel plate capacitor with a speed v. Then the variation of dc/dt with respect to v is (dc/dt = Rate change of capacitance) –

• A.
• B.
• C.
• D.

Answer 1

Answer: (B)

Answer 2

C_eq = C₁ + C₂ = +

=

∴ $\frac { \mathrm { dc } } { \mathrm { dt } }$ = $\frac { \varepsilon _ { 0 } \mathrm {~b} } { \mathrm {~d} }$ (K – 1) = $\frac { \varepsilon _ { 0 } \mathrm {~b} } { \mathrm {~d} }$ (K – 1)V