CUET · PHYSICS · PYQ PAPER 2023
Let \( i_E, i_C \) and \( i_B \) represent the emitter current, collector current and base current respectively in a transistor. Choose the correct statement from the following:
- A \( i_C \) is slightly greater than \( i_E \)
- B \( i_B \) is much greater than \( i_E \)
- C \( i_C \) is equal to \( i_B \)
- D \( i_E \) is equal to the sum of \( i_C \) and \( i_B \)
Answer & Solution
Correct Answer
(D) \( i_E \) is equal to the sum of \( i_C \) and \( i_B \)
Step-by-step Solution
Detailed explanation
Based on Kirchhoff's Current Law, the emitter current \(\left(i_E\right)\) is the source current that splits into the collector current ( \(i _{ C }\) ) and the base current ( \(i _{ B }\) ). Therefore, the total current is represented by the sum \(i _E= i _C+ i _B\). D) \(i_E\)…
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