<div style="text-align:left;"> <p class="MsoNormal"><font face="돋움"><span lang="en-us" style="line-height:107%;">1.</span><span style="line-height:107%;">반경<span lang="en-us">R</span>의 구 안에 균일한 전하<span lang="en-us">(</span>전하밀도</span><span lang="ja" style="line-height:107%;">ρ</span><span lang="en-us" style="line-height:107%;">)</span><span style="line-height:107%;">가</span><span style="line-height:107%;"> </span><span style="line-height:107%;">분포하고</span><span style="line-height:107%;"> </span><span style="line-height:107%;">있다</span><span lang="en-us" style="line-height:107%;">. </span><span style="line-height:107%;">푸아송</span><span style="line-height:107%;"> </span><span style="line-height:107%;">방정식을</span><span style="line-height:107%;"> </span><span style="line-height:107%;">풀어</span><span style="line-height:107%;"> </span><span style="line-height:107%;">전기포텐셜</span><span style="line-height:107%;"> </span><span style="line-height:107%;">식을</span><span style="line-height:107%;"> </span><span style="line-height:107%;">구하여라</span><span lang="en-us" style="line-height:107%;">.</span></font></p><p></p> <p class="MsoNormal"><font face="돋움"><span lang="en-us" style="line-height:107%;">(</span><span style="line-height:107%;">힌트<span lang="en-us">1) </span>구는 대칭이므로 라플라스 연산자는 다음과같이 간략화 할 수 있다<span lang="en-us">.</span></span></font></p></div> <div style="text-align:left;"><font face="돋움"><img src="http://thimg.todayhumor.co.kr/upfile/201802/1517475702d452b286dd894bf6b8db708166836cdb__mn769930__w203__h49__f3275__Ym201802.jpg" width="203" height="49" alt="43.jpg" style="border:none;" filesize="3275"></font></div> <div style="text-align:left;"> <p class="MsoNormal"><font face="돋움"><span lang="en-us" style="line-height:12.84px;">(</span><span style="line-height:12.84px;">힌트<span lang="en-us">2) </span>경계 <span lang="en-us">r=R</span>에서는<span lang="en-us">, </span>다른 영역에서의 전기 포텐</span><span style="line-height:12.84px;">셜</span><span lang="ja" style="line-height:12.84px;">φ</span><span style="line-height:12.84px;">과 전기장 <span lang="en-us">E</span>가 같아진다<span lang="en-us">.</span></span></font></p><p></p> <p class="MsoNormal"><span lang="en-us" style="line-height:12.84px;"><font face="돋움"><br></font></span></p> <p class="MsoNormal"><font face="돋움"><span lang="en-us" style="line-height:12.84px;">2.</span><span style="line-height:12.84px;">무한히 넓은 도체면에 평행한<span lang="en-us">, </span>선밀도 </span><span lang="ja" style="line-height:12.84px;">λ</span><span style="line-height:12.84px;">의 무한히 긴 선전하가<span lang="en-us">, </span>도체면에서부터 거리 <span lang="en-us">R</span>만큼 떨어져 있는 곳에 놓여져있다<span lang="en-us">. </span>도체면상의 전기장의 세기 <span lang="en-us">E</span>와 면전하밀도 </span><span lang="ja" style="line-height:12.84px;">σ</span><span style="line-height:12.84px;">를 구하여라<span lang="en-us">.</span></span></font></p></div> <div style="text-align:left;"><font face="돋움"><img src="http://thimg.todayhumor.co.kr/upfile/201802/1517475703613773a6c89b4e93bc9db4a56cf55349__mn769930__w459__h225__f6754__Ym201802.jpg" width="459" height="225" alt="45.jpg" style="border:none;" filesize="6754"></font></div> <div style="text-align:left;"><font face="돋움"><br></font></div> <div style="text-align:left;"><font face="돋움">전자기학에 너무 약해서ㅠㅠㅠㅠ.. 혹시 도와주실 분 계신가요..</font></div><br>
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