a).What is the electric field strength E at a 1 distance of 1 cm from a 100-mC charge in transformer oil?
b). what is E at twice the distance.
2006-10-23 16:39:59 · 1 個解答 · 發問者 bennett 2 in 科學 ➔ 其他：科學
a)
E = ( 1/ 4 pi eo er )( q / r^2 )
you need er of the transformer oil and put into the formula above.
b)
1/4 of the answer of part a.
2006-10-23 17:35:47 · answer #1 · answered by ? 7 · 0⤊ 0⤋