电流到底是标量还是矢量
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\u77e2\u91cf\u548c\u6807\u91cf\u533a\u522b\uff1a
1\u3001\u6807\u91cf(scalar)\uff0c\u4ea6\u79f0"\u65e0\u5411\u91cf"\u3002\u6709\u4e9b\u7269\u7406\u91cf\uff0c\u53ea\u5177\u6709\u6570\u503c\u5927\u5c0f\uff0c\u800c\u6ca1\u6709\u65b9\u5411\uff0c\u90e8\u5206\u6709\u6b63\u8d1f\u4e4b\u5206\u3002\u7269\u7406\u5b66\u4e2d\uff0c\u6807\u91cf(\u6216\u4f5c\u7eaf\u91cf)\u6307\u5728\u5750\u6807\u53d8\u6362\u4e0b\u4fdd\u6301\u4e0d\u53d8\u7684\u7269\u7406\u91cf\u3002\u7528\u901a\u4fd7\u7684\u8bf4\u6cd5\uff0c\u6807\u91cf\u662f\u53ea\u6709\u5927\u5c0f\uff0c\u6ca1\u6709\u65b9\u5411\u7684\u91cf\u3002
2\u3001\u77e2\u91cf\u56fe\u50cf\uff0c\u53c8\u79f0\u4e3a\u5411\u91cf\uff0c\u4e5f\u79f0\u4e3a\u9762\u5411\u5bf9\u8c61\u7684\u56fe\u50cf\u6216\u7ed8\u56fe\u56fe\u50cf\uff0c\u5728\u6570\u5b66\u4e0a\u5b9a\u4e49\u4e3a\u4e00\u7cfb\u5217\u7531\u7ebf\u8fde\u63a5\u7684\u70b9\u3002
\u5728\u6e38\u620f\u5f00\u53d1\u4e2d\uff0c\u5411\u91cf\u8fd8\u6709\u7c7b\u4f3c\u4e8e\u7269\u7406\u65b9\u9762\u91ca\u4e49\u7684\u542b\u4e49\u3002\u8bbe\u5bf9\u8c61a\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u6e38\u620f\u811a\u672c\u8fdb\u884c\u7f16\u7a0b\u4ee5\u63a7\u5236object a\uff0c\u5982\u8f6c\u5411\u7b49\uff0c\u7531\u4e8e\u5176\u5750\u6807\u6027\u8d28\uff0c\u5219\u9700\u8981\u901a\u8fc7\u5411\u91cf\u8fdb\u884c\u63a7\u5236\u3002\u4e09\u7ef4\u5411\u91cf(Vector3)\u8fd9\u4e2a\u7ed3\u6784\u5219\u7528\u4e8e\u5728Game Engine\u4e2d\u4f20\u90123D\u4f4d\u7f6e\u548c\u65b9\u5411\uff0c\u4e5f\u5305\u542b\u505a\u4e9b\u666e\u901a\u5411\u91cf\u8fd0\u7b97\u7684\u51fd\u6570\u3002
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\u3000\u539f\u56e0\uff1a\u7535\u6d41\u7684\u8fd0\u7b97\u9075\u4ece\u4ee3\u6570\u8fd0\u7b97\u3002
\u3000\u6bd4\u5982\u5e76\u8054\u7535\u8def\u4e2d I1=3A I2=4A
\u3000\u7535\u8def\u603b\u7535\u6d41 I=I1+I2=7A \u76f4\u63a5\u76f8\u52a0 \u662f\u6807\u91cf\u3002
\u3000\u5982\u679c\u662f\u77e2\u91cf I=(I1^2+I2^2)^1/2=5A \u4e0d\u7b26\u5408\u5e76\u8054\u7535\u8def\u6709\u7279\u70b9
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绛旓細鏄爣閲銆傜煝閲忎箣鎵浠ユ棤娉曠敤涓涓暟瀛楁潵琛ㄨ揪锛屾槸鍥犱负瀹冭嚦灏戞槸浜岀淮鐨勶紝鑷冲皯瑕佺敤涓や釜鍧愭爣閲忔潵琛ㄨ揪銆傜數娴佸湪鐮旂┒鐨勬椂鍊欙紝鍙湁涓缁寸殑鍙樺寲銆傚彧鏈夋璐熺殑鍙樺寲锛岀敤涓涓疄鏁板氨鍙互琛ㄧず浜嗭紝鎵浠ワ紝瀹冩槸鏍囬噺
绛旓細锛1锛夌數娴佹槸鏍囬噺銆傦紙2锛夌數娴佹湁鏂瑰悜銆佷絾鏄數娴佹槸鏍囬噺銆傚師鍥狅細鐢垫祦鐨勮繍绠楅伒浠庝唬鏁拌繍绠椼傛瘮濡傚苟鑱旂數璺腑 I1=3A I2=4A 鐢佃矾鎬荤數娴 I=I1+I2=7A 鐩存帴鐩稿姞 鏄爣閲忋傚鏋滄槸鐭㈤噺 I=(I1^2+I2^2)^1/2=5A 涓嶇鍚堝苟鑱旂數璺湁鐗圭偣 鎵浠ャ佺數娴佹槸鏍囬噺銆
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绛旓細鐢垫祦鏄爣閲銆 鐢垫祦纭疄鏈夊ぇ灏忋佹湁鏂瑰悜銆備絾鐭㈤噺鐨勫畾涔夋槸锛氬叿鏈夊ぇ灏忓拰鏂瑰悜锛屽苟涓旇兘澶熻繍鐢ㄥ钩琛屽洓杈瑰舰瀹氬垯杩愮畻鐨勯噺锛岀數娴佺殑杩愮畻涓嶆弧瓒冲钩琛屽洓杈瑰舰瀹氬垯锛屾墍浠ヤ笉鏄煝閲銆傚叾瀹炵數娴佷篃鏈夌煝閲忔э紝鍙笉杩囧畠涓嶇鍚堟垜浠姏瀛︿腑涓ユ牸瀹氫箟鐨勭煝閲忋傝繕鏈夌被浼肩殑鐢靛帇銆傜數娴佸拰鐢靛帇鐨勫叧绯 鐢垫祦涓庣數鍘嬬殑鍏崇郴濡備笅锛氬綋鐢甸樆涓嶅彉鏃讹紝鏍规嵁R...
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绛旓細鐢垫祦铏芥湁姝ｈ礋,浣嗗畠鏄竴涓爣閲.鍥犱负鏈変袱绉嶇數鑽,姝ｇ數鑽峰拰璐熺數鑽,瀹冧滑绉诲姩閮借兘褰㈡垚鐢垫祦,涓轰簡渚夸簬鍒嗘瀽鍜屽鐞嗛棶棰,鍦ㄧ墿鐞嗗涓瀹:姝ｇ數鑽峰畾鍚戠Щ鍔ㄧ殑鏂瑰悜涓虹數娴佺殑鏂瑰悜.鎵浠ヨ礋鐢佃嵎绉诲姩鏂瑰悜涓庣數娴佹柟鍚戠浉鍙.鍔熸湁姝ｈ礋鏄爣閲
