Electric Circuits Answers

1. Find the input thermal noise voltage of a receiver with a bandwidth of 3.33 kHz, with an input resistance of 42 Ω, and a temperature of 29^oC.
2. Calculate the wavelength of a waveform given a period of 17μs.
3. Given the signal power of 2.3 μW and the noise power of 0.7 μW, calculate the signal-to-noise ratio.
4. Three (3) AM broadcast stations are spaced at 18 kHz, beginning at 73 kHz. Each station is allowed to transmit modulating up to 6 kHz. Compute for the upper and lower sidebands of each station.
5. Given a dc bias of 0.5mA and a bandwidth of 10 kHz, calculate for the noise current.

Given a dc bias of 0.5mA and a bandwidth of 10kHz, calculate for the noise current

calculate the current through the galvanometer and obtain the effective resistance of the network

Four forces are exerted on the eyebolt as shown. If the net effect on the bolt is a direct pull of 600 lb in the y-direction, determine the necessary values of T and ø

When the circuits Vb = v

then the value taken from the rheostats and the reading of the ammeter directly/ inversely/constant proportion??