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1. A parallel plate capacitor has its length, width and separation doubled. It fringing effects are neglected, to keep the capacitance same, the dielectric constant must be





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  • By: guest on 02 Jun 2017 12.59 am
    . When dimensions are changed, A become four times and d becomes twice. Since ∈0 is constant, ∈r must be halved to keep C constant.
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