A conducting sphere of radius 005 meter has a charge of 10 x 109 导体球半径005有一个免费的10×109.docxVIP

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A conducting sphere of radius 005 meter has a charge of 10 x 109 导体球半径005有一个免费的10×109.docx

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A conducting sphere of radius 005 meter has a charge of 10 x 109 导体球半径005有一个免费的10×109

A conducting sphere of radius 0.05 meter has a charge of 1.0 x 10-9 C deposited on it. The magnitude of the electric field in N/C inside the sphere at a distance of 0.25 m from the cnetr of the sphere is0450900450090,000A circular wire loop of radius R rotates with an angular frequency ω in a uniform magnetic field B. If the induced emf produced in the loop is A sin(ωt), the angular frequency ω of the loop would be equal toA line charge carries a uniform charge density λ. The electric field at a distance r from the wire would be proportional toA.a function of all r, θ and φLet z=x+iy. Then the imaginary part of 1/z, Im(1/z) would be:–y/(x2+y2)+y/(x2+y2)–x/(x2+y2)+x/(x2+y2)(x+y)/(x2+y2)Which of the following series corresponds to :Which of the following results is correct if we take the divergence of the function 2y+ 2x2-6yz24xy+3z2-6z302y+4xy+2x2+3z2-6yz22x2-6yz2If z is a complex number the roots of z3-8 =0 areA.2, 2, and -2B. 2, and C.2, and D.2, and E.none of the above From the solution of the differential equation for the boundary conditions and , the velocity =A. sinktB. (sin(kt)+ cos(kt))C. exp-iktD. cos(kt)E.cos(kt)The speed of a relativistic particle having a momentum 5MeV/c and a total relativistic energy of 10Mev isA: cB: 0.75 cC: D:E.If the absolute temperature of a black body is increased by a factor of 4 the energy radiated per second per unit area A.decreases by a factor of 256.B.`decreases by a factor of 16.C.increases by a factor of 16D.increases by a factor of 64E.increases by a factor of 256The speed of a wave traveling through a stretched string is directly proportional to the density per unit length of the stringsquare of the tensionsquare root of the tensionsquare of the density per unit lengthsquare root of the density per unit length12.A ray of light in a dense liquid, index of refraction = 1.4, approaches the boundary surface between the liquid and air at angle of incidence whose sine = 0.8. On the basis of this data, the followi