登入
WAEC - Physics (1988 - No. 50)
An electron of charge 1.6 x 10
19
C is accelerated in vacuum from rest at zero volt towards a plate of 40KV. Calculate the kinetic energy of the electron.
4 x 10
25
J
4 x 10
21
J
6.4 x 10
20
J
6.4 x 10
-15
J
2.5 x 10
20
J
评论 (0)
登录发表评论
广告
允许 javascript 正确加载此页面
