Problems

1. On page 546 it is stated that E_g1 = EC₁(C₁ + C_g1) gives the line to ground voltage. Prove this to be true,

2. The arrows of Fig. 7 show the way noise currents flow through the telephone set at the distant end. Analyze conditions at the near end.

3. Repeat Problem 2 for Fig. 8.

4. The device of Fig. 26 operates at 115 volts, 10 amperes, and is causing excessive audio-frequency noise. What values of inductors and capacitors should be used, and why should they have these values?

5. Repeat Problem 4 if the device is causing radio-frequency noise only.