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evablogger [386]
1 year ago
11

If an emitter current is changed by 4 mA, the collector current changes by 3.5 mA. The value of beta will be :​

Mathematics
1 answer:
Tems11 [23]1 year ago
8 0
<h3>Given -:</h3>

change in emitter current, ∆l(E) = 4 mA

change in collector current,∆I(C) = 3.5 mA

<h3>To find -:</h3>

value of B

<h3>Solution :-</h3>

∆I(E) = ∆I(C) + ∆l(B), here ∆l(B) is the change in base current.

4 = 3.5 + ∆l(B)

∆I(B) = 0.5 mA

<h3>Now, B = ∆l (C) ÷ ∆l (B)</h3>

B = 3.5 ÷ 0.5

B = 7.0

<h3>so, the value of A = 7.0</h3>

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