^For infinite line charge December 23, 2021/in Back end /by kp-web-adminFor infinite line charge Both α & β will approach to 900 & E becomes /wp-content/uploads/2021/04/logo-2.png 0 0 kp-web-admin /wp-content/uploads/2021/04/logo-2.png kp-web-admin2021-12-23 14:53:452021-12-23 14:53:45^For infinite line charge
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