Electrostatic Shielding
Physics ⇒ Electricity and Magnetism
Electrostatic Shielding starts at 10 and continues till grade 12.
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See sample questions for grade 11
A conducting shell has a charge +Q placed at its center. What is the net charge induced on the inner surface of the shell?
A conducting shell is placed in an external electric field. What happens to the electric field inside the shell?
A hollow conducting sphere is placed in a uniform electric field. What is the electric field at the center of the sphere?
A metal box is grounded and placed in a region with a strong external electric field. What is the electric field inside the box?
A metal sphere is placed in a uniform electric field. What is the electric field inside the sphere?
A point charge is placed outside a hollow conducting shell. What is the electric field at the center of the shell?
A sensitive electronic device is placed inside a metal box. What is the purpose of the metal box?
Describe the effect of electrostatic shielding on the potential inside a hollow conductor.
Describe the role of grounding in electrostatic shielding.
Describe what happens to the charges on a conductor when it is placed in an external electric field.
Explain why a car acts as a Faraday cage during a lightning strike.
Explain why a television cable is shielded with a metallic braid.
Explain why sensitive electronic equipment is often enclosed in metal cases.
Explain why the electric field inside a hollow conductor is zero when placed in an external static electric field.
State Gauss's law and explain its role in electrostatic shielding.
What is electrostatic shielding?
Why is a Faraday cage used in laboratories?
