Questions
A point charge is placed just outside an imaginary hemispherical surface of radius R as shown in the figure. Which of the following statements is/are correct?
detailed solution
Correct option is A
A) Flux passing through curved surface + Flux passing through flat surface = 0 ϕ=−Q4πε02π1−cosθ Put θ=45° =−Q2∈01−12 B) at x&r is variable: E E⊥=Esinα =kQr2Rr =KQRr3E⊥ is not constant over the surfaceC) Total flux through the curved and the flat surface is zero, because enclosed charge is zero.D) V=kQr=kQR2 . Circumference is equidistance from charge Q. Therefore it will be equipotential surfaceTalk to our academic expert!
Similar Questions
A cube of edge L = 10 cm is placed in uniform electric field E =5000 N/C as shown in Fig. (a), if the cube is rotated by angle with vertical as shown in Fig. (b). Calculate the flux of electric field (in N - m2 / C) entering the cube.
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