A 1 KW signal is transmitted using a communication channel which provides attenuation at the rate of – 2dB per km. If the communication channel has a total length of 5 km, the power of the signal received is [gain in dB =10 log(p0/p1)]
(a) 900 W.
(b) 100 W.
(c) 990 W.
(d) 1010 W.