*Question E4B06:
How much power is being absorbed by the load when a directional power meter connected between a transmitter and a terminating load reads 100 watts forward power and 25 watts reflected power?*  

*Correct Answer is  D: 75 watts*  

### AI Response: (may contain errors)  

To determine how much power is being absorbed by the load, we can use the following formula:

$$
P_{load} = P_{forward} - P_{reflected}
$$

where:
- $P_{load}$ = power absorbed by the load
- $P_{forward}$ = forward power reading from the meter
- $P_{reflected}$ = reflected power reading from the meter

Given:
- $P_{forward} = 100$ watts
- $P_{reflected} = 25$ watts

Now, substituting the values into the formula:

$$
P_{load} = 100 \, \text{watts} - 25 \, \text{watts} = 75 \, \text{watts}
$$

### Explanation of the Correct Answer:
- The correct answer is **75 watts** because this is the amount of power that is actually being absorbed by the load after accounting for the power that is reflected back due to impedance mismatch.

### Why the Other Choices are Incorrect:
- **A: 100 watts**: This choice represents the total forward power, not accounting for the reflected power that does not reach the load.
- **B: 125 watts**: This choice incorrectly adds the forward and reflected power, which does not represent the power absorbed by the load.
- **C: 112.5 watts**: This choice seems to be a miscalculation and does not follow the correct formula for power absorption.

### Summary:
- The power absorbed by the load is calculated by subtracting the reflected power from the forward power. In this case, the load absorbs 75 watts, which is the correct answer.