If the base width in a bipolar junction transistor is doubled, the emitter base junction capacitance will increase.

Here's why:

1. The base width in a bipolar junction transistor (BJT) is directly related to the emitter-base junction capacitance. The junction capacitance is a function of the depletion layer width.

2. When the base width is increased, the depletion layer width also increases. This is because the base width and the depletion layer width are directly proportional to each other.

3. The capacitance of a junction is inversely proportional to the width of the depletion layer. Therefore, when the depletion layer width increases, the junction capacitance decreases.

4. However, in a BJT, the emitter-base junction capacitance is the total capacitance due to both the emitter-base junction and the base-collector junction. When the base width is increased, the base-collector depletion layer width decreases, which increases the base-collector junction capacitance.

5. Therefore, the overall effect of increasing the base width is an increase in the emitter-base junction capacitance.

The other options (current gain, early voltage, and unity gain frequency) are not directly affected by the base width.

Question

If the base width in a bipolar junction transistor is doubled, the emitter base junction capacitance will increase.

Here's why:

1. The base width in a bipolar junction transistor (BJT) is directly related to the emitter-base junction capacitance. The junction capacitance is a function of the depletion layer width.

2. When the base width is increased, the depletion layer width also increases. This is because the base width and the depletion layer width are directly proportional to each other.

3. The capacitance of a junction is inversely proportional to the width of the depletion layer. Therefore, when the depletion layer width increases, the junction capacitance decreases.

4. However, in a BJT, the emitter-base junction capacitance is the total capacitance due to both the emitter-base junction and the base-collector junction. When the base width is increased, the base-collector depletion layer width decreases, which increases the base-collector junction capacitance.

5. Therefore, the overall effect of increasing the base width is an increase in the emitter-base junction capacitance.

The other options (current gain, early voltage, and unity gain frequency) are not directly affected by the base width.

Knowee AI · Accepted Answer

If the base width in a bipolar junction transistor is doubled, the emitter base junction capacitance will increase.

Here's why:

1. The base width in a bipolar junction transistor (BJT) is directly related to the emitter-base junction capacitance. The junction capacitance is a function of the depletion layer width.

2. When the base width is increased, the depletion layer width also increases. This is because the base width and the depletion layer width are directly proportional to each other.

3. The capacitance of a junction is inversely proportional to the width of the depletion layer. Therefore, when the depletion layer width increases, the junction capacitance decreases.

4. However, in a BJT, the emitter-base junction capacitance is the total capacitance due to both the emitter-base junction and the base-collector junction. When the base width is increased, the base-collector depletion layer width decreases, which increases the base-collector junction capacitance.

5. Therefore, the overall effect of increasing the base width is an increase in the emitter-base junction capacitance.

The other options (current gain, early voltage, and unity gain frequency) are not directly affected by the base width.

If the base width in a bipolar junction transistor is doubled, which one of the following statements will be TRUE?Current gain will increaseEarly voltage will increaseEmitter base junction capacitance will increaseUnity gain frequency will increase

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