The electric field intensity inside the cavity is zeroFurther discussion of the metal mesh cover, although the net cover you have said that the hollow part, but this does not affect the metal mesh cover on the generation of induced charges, the metal screen outside the electric field will also be induced by the electric field of charge offsetWant to help you oh!
Q, due to electrostatic induction, the outer surface of the cavity conductor will have an induced chargeThe electric field generated by the Q in the cavity is counteracted by each other, thereby
The principle of electrostatic shielding is:Assuming a cavity conductor (first discussed with a closed conductor)
