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प्रश्न
Write a short note on ‘electrostatic shielding’.
उत्तर
Consider a cavity inside the conductor. Whatever the charges at the surfaces and whatever the electrical disturbances outside, the electric field inside the cavity is zero. A sensitive electrical instrument which is to be protected from external electrical disturbance is kept inside this cavity. This is called electrostatic shielding.
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संबंधित प्रश्न
What is polarisation?
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