NEET2014PhysicsCapacitanceActual
The diameter of the plate of a parallel plate condenser is 6 ~cm . If its capacity is equal to that of a sphere of diameter 200 ~cm , the separation between the plates of the condenser is
Options
- A4.5 10⁻⁴ ~m
- B2.25 10⁻⁴ ~m
- C6.75 10⁻⁴ ~m
- D9 10⁻⁴ ~m
Correct answer
B. 2.25 10⁻⁴ ~m
Step-by-step solution
As ₀ A d =4 ₀ Rd= A 4 R = (6 / 2)^2 4 (100) =2.25 10⁻² ~cm =2.25 10⁻⁴ ~m