A spherical sphere with radius a has a frozen polarization P(t)= krthen the volume bound charge is -4kr b. zero -3kr d. ... 查看全部

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The magnetic moment for the square loop with side a and current l is O a. Ia o b. 1 a² C. Zero d. 123

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i need final answer quickly please2. FOR SIMPLY SUPPORTED BEAM , THAT CARIES UNIFORM DISTRIBUTED LOAD, THE MAGNITUDE OF ... 查看全部

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