一道电磁学的题目? 20
1个回答
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(1)C0 = ε0 S / L = 2.655*10^-10 F
(2)q0 = C0 U0 = 7.965 *10^-7 C
(3)C = q / U = 7.965 *10^-10 F
(4)E0 = U0 / L =3.00*10^5 V/m
(5)E = U / L =1.00*10^5 V/m
(6)q' 本身为负,把它写成绝对值的形式,负号明显写出来
E = (q0 - q')/S / ε0
q'(绝对值)= 5.31*10^-7 C
(7)εr = C / C0 = 3
(2)q0 = C0 U0 = 7.965 *10^-7 C
(3)C = q / U = 7.965 *10^-10 F
(4)E0 = U0 / L =3.00*10^5 V/m
(5)E = U / L =1.00*10^5 V/m
(6)q' 本身为负,把它写成绝对值的形式,负号明显写出来
E = (q0 - q')/S / ε0
q'(绝对值)= 5.31*10^-7 C
(7)εr = C / C0 = 3
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