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2. Charges on electron 1.6 X 10-19C.Section -AQ.1) the SI unit of electric intensity is -a) newton/joule b) joule /coulomb c) newton/ coulomb d) coulca)emfe P.D b) e.m.f. > P.D. c)e.m.f. < P.D. d) e.mf.a) N.mQ.2)ln an open circuit (1-0) the relation between e.m.f. and P.D. is--Q.3) the Si unit of energy is joule, which is equivalent to -Q.4) the vector product of A +jand Bj isQ.5)In a T.V. picture tube ,electrons move from the rear to the front.b) watt/sc) N.m2/s2d) Na)b)jc) kd) |
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Answer» The SI unit of electric field strength isnewtonspercoulomb(N/C) orvoltspermeter(V/m). The force experienced by a very small test charge q placed in a field E in a vacuum is given by E = F/q, where F is the force experienced. Joule, unit of work or energy in the International System of Units (SI); it is equal to the work done by a force of onenewtonacting through one metre. |
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