A common emiiter amplifier has voltage gain 50 and current gain is 25. The power gain of the amplifier is:

Options

A. 500
B. 1000
C. 1250
D. 100

Explanation

To find the power gain of a common emitter amplifier given its voltage gain and current gain, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Given Values**:
- Voltage Gain (Av) = 50
- Current Gain (Ai) = 25

2. **Understand the Formula for Power Gain**:
- The power gain (Ap) of an amplifier can be calculated using the formula:
\[ Ap = Av \times Ai \]
- Where:
- \( Ap \) = Power Gain
- \( Av \) = Voltage Gain
- \( Ai \) = Current Gain

3. **Substitute the Given Values into the Formula**:
- Substitute the values of voltage gain and current gain into the formula:
\[ Ap = 50 \times 25 \]

4. **Calculate the Power Gain**:
- Perform the multiplication:
\[ Ap = 1250 \]

5. **State the Final Answer**:
- The power gain of the amplifier is 1250.

### Final Answer:
The power gain of the amplifier is **1250**.

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