Conductor ShieldingHardQuestion 31433
Question
A conducting shell shields the interior from:
- AInternal charges only
- BExternal electric fields onlyCorrect
- CGravitational fields
- DBoth internal and external fields
Correct answer
External electric fields only
Explanation
External field: charge redistributes on shell surface → E = 0 inside (shielding). But a charge inside the cavity induces surface charges and creates field inside — not shielded from internal sources.