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electronic devices are usually enclosed in metal boxes, onefunction of the box is to shield the inside components fromexternal electric fields.

a) how does this shielding work? (something to do with faraday'scage???)

b) why is the degree of shielding better for constant or slowlyvarying fields than for rapidly vary fields?

c) explain the reasons why it is not possible to shield somethingfrom gravitational fields in a is similar way.

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