1. If a signal has a gain (G) equals to 32000 (linear), what is the gain in dB? How much will be the remaining power (in %), if the gain is reduced to 6dB.

4. An amplifier has an input power of 0.5 watts and its output power of 75 watts. What is the gain of the amplifier in dB?

8. Calculate the radiation resistance when the loss resistance of an antenna is 82, the directivity of the antenna is 20 (linear) and power gain is 18 (linear).

9. If the reflection coefficient (r) is 0.5, calculate the VSWR.

11. Calculate the reflection coefficient when the VSWR= 1.5. Also calculate the corresponding return loss in dB.

14. Plot the following impedance points on smith chart. i. Z1= 100+j50 ii. Z2 = 75-j100 iii. Z3 = j200 iv. Z4 = 150

15. Plot the following on smith chart i. Z5 = infinity (Open circuit) ii. Z6 = 0 (short circuit) iii. Z7 = 50 (Z.) iv. Z8 = 184-j900