[" 11.An clectron expericnces a force equal to its weight,when placed in an electric field.The "],[" intensity of the field will be "],[[" (A) "1.7times10^(-1)N/C," (B) "5.0times10^(-11)N/C],[" (C) "5.5times10^(-11)N/C," (D) "56N/C]]