[問題] 電子學
各位大大,我有幾題電子學的問題,要請教各位大大
第一題
http://imgur.com/zbBkfye
我算出來的答案是大約230kΩ,但答案是460kΩ,不知道是答案錯,還是我觀念錯
第二題
http://imgur.com/WnsoV8a
這題答案是A,但我怎麼算都算不出答案,只好請教各位大大
第三題
http://imgur.com/kpT6xmd
這題答案是D,這題是不知道如何下手,只好麻煩各位大大指教
第四題
http://imgur.com/97bgezq
這題答案是B,這題也是不知道如何下手,只好麻煩各位大大指教
第五題
http://imgur.com/pwCROlC
這題答案是D, 但我怎麼算都算不出答案,只好請教各位大大
麻煩各位大大能盡量幫忙解答,感謝。
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