A receiver requires 10 mW as input power. If all the system losses add up to 50 db, then how much power is required from all the source ?

1kw

To calculate the total power required from the source, we need to take into account the system losses expressed in decibels (dB).

The formula to convert dB to the power ratio is:

Power ratio = 10^(dB/10)

Given that the system losses add up to 50 dB, we can calculate the power ratio:

Power ratio = 10^(50/10)
= 10^5

Therefore, the power ratio is 100,000.

Now, if the receiver requires 10 mW (milliwatts) as input power, we can calculate the total power required from the source by multiplying the power ratio by the receiver's power requirement:

Total power required from the source = Power ratio × Receiver power requirement
= 100,000 × 10 mW
= 1,000,000 mW or 1000 W (watts)

Hence, the total power required from the source is 1000 watts.