
기말-04. 유전체
Authored by 준혁 김
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18 questions
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1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
진공의 유전율 대비 매질의 유전율은 무엇이라고 부르는가?
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
절연체에서 발생하는 정전유도 현상으로 분극전하를 유도하는 현상을 무엇이라고 부르는가?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
공기 중에서 어느 거리를 두고 있는 두 점전하 사이에 작용하는 힘이 10[N]일 때, 두 점전하를 유전체 속에 넣었더니 작용하는 힘이 1[N]으로 감소하였다. 이 액체 유전체의 비-유전율은 얼마인가?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
양 도체 사이에 절연내력이 100[V/m]이고, 비유전율이 5인 절연액체를 넣으면 공기인 경우와 비교하여 몇 배의 전하가 저장될 수 있는가?(단, 공기의 절연내력은 10[V/m]로 가정한다.)
50
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1
2
3
0.25
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
전속 밀도는 단위 면적당 전하량으로 ( )와 같다.
표면전하밀도
유전율
전속
페러데이관
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
도체 표면상의 한 점에서 전속밀도 D=3ax-4ay[C/m^2]일 때, 표면 전하밀도의 크는?
5
3
2
0.7
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