A signal of 0.1 kW is transmitted in a cable. The attenuation of cable is -5 dB per km and cable length is 20 km. The power received at receiver is `10^(-x)` W. The value of x is _____ . [Gain in `10 log_(10) ((P_0)/(P_i))` ]

Find the value of x satisfying (log_(10)(2^(x)+x-41)=x(1-log_(10)5)

A 1 KW signal is transmitted using a communication channel which provides attenuatiom at the rate of - 2 dB 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 ((P_(0))/(P_(i)))]

The impedance of coaxial cable, when its inductance is 0.40 mu H and cappacitance is 1xx10^(-11) F , can be

A cable of resistance 10 Omega carries electric power from a generator producing 250 kW at 10,000 V . The current in the cable is

If X is a poisson variety with P(x=0)=0.8 then the variance of x is (A) log_(e)^(20) log_(10)^(20) (B) ( C) log((5)/(4)) (D) 0