第 34 題

1 A 16-nC charge is distributed uniformly along the $x$ axis f… 93% 2 A charge per unit length given by $\lambda(x) = bx$, where… 90% 3 A solid insulating sphere of radius R contains positive char… 87% 4 If the electric field is in the positive x direction and has… 86% 5 A conducting sphere of radius $R$ carries an excess positive… 85% 6 A solid nonconducting sphere of radius $R$ carries a charge… 84% 7 Point charges $q$ and $Q$ are positioned as shown. If $q = +2.0\text{ nC}$… 84% 8 A solid nonconducting sphere of radius $R$ carries a uniform… 84%