MHT CET · Physics · Semiconductors

For transistor, the current ratio ‘ $β_{d c}$ ’ is defined as the ratio of

A collector current to emitter current
B collector current to base current
C base current to collector current
D emitter current to collector current

Verified Solution

Answer & Solution

Correct Answer

(B) collector current to base current

Step-by-step Solution

Detailed explanation

∵ β_{d c} = \frac{i_{c}}{i_{b}} = \frac{C o l l e c t o r c u r r e n t}{B a s e c u r r e n t}

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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For transistor, the current ratio ‘ βdc ’ is defined as the ratio of

Step-by-step Solution

For transistor, the current ratio ‘ $β_{d c}$ ’ is defined as the ratio of