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Question
নিচের কোন সূত্রটি সঠিক?
I
E
=
I
B
-
I
C
I
C
=
I
E
+
I
B
I
E
=
I
B
+
I
C
I
B
=
I
E
+
I
C
ANSWER : 3
Descrption
<p>The correct formula for a bipolar junction transistor (BJT) is:</p><p><strong>I_E = I_B + I_C</strong></p><p>where:</p><ul><li>I_E = Emitter current</li><li>I_B = Base current</li><li>I_C = Collector current</li></ul><p>Here's a breakdown of why this formula is correct and the others are not:</p><ul><li><strong>I_E = I_B - I_C:</strong> This formula is incorrect. The emitter current is the total current entering the transistor, and it's the sum of the base current and collector current, not the difference.</li><li><strong>I_C = I_E + I_B:</strong> This formula is also incorrect. The collector current is a part of the emitter current, not the sum of both.</li><li><strong>I_B = I_E + I_C:</strong> This formula is incorrect for the same reason as the previous one. The base current is a much smaller component compared to the emitter current.</li></ul>
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