Assertion (A): A transistor with common emitter mode has current gain 50 . When base current is ...

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Assertion (A): A transistor with common emitter mode has current gain 50 . When base current is \( 5 \mu \mathrm{A} \), the emitter current is \( 0.255 \mathrm{~mA} \).
Reason (R): \( I_{e}=I_{b}+I_{c} \quad \) and \( \quad \beta=I_{c} I_{b} \)
(A) Both A and R are true and R is the correct explanation of A.br(B) Both A and R are true, but R is not the correct explanation of A.
(C) A is true, but R is false.
(D) A is false, but R is true.
(E) Both A and R are false.
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