Assume that an antenna has a power input of 50 w and a gain
Assume that an antenna has a power input of 50 W and a gain of 30 dB relative to an isotropic radiator. Determine the increase in dB of the received signal at a point where the signal strength is 5 dB below the level of maximum radiation
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The input impedance of a certain antenna is 30+ j40 ohms and the rms voltage across the terminal is 100 V. If the antenna were 100 percent efficient, determine the total radiated power in watts.
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Three charges sit at the corners of an equilateral triangle with sides of length d = 3cm. Calculate the electric potential at the centre of the triangle
Conoly Co. has identified an investment project with the following cash flows. If the discount rate is 10 %, what is the present value of these cash flows? What is the present value at 18%? At 24 %? Year Cash Flow 1 - $960 2 - $840 3 - $935 4 - $1
In an adiabatic compression if one mole of an ideal gas with a Cv=5R/2, the temperature rises from 293 K to 325 K. Calculate the heat, work, change in enthalpy and change in internal energy
A small ball rolls horizontally off the edge of a tabletop that is 1.06 m high. how long was the ball in the air
If the cost of common equity for the firm is 18.2%, the cost of preferred stock is 10.9% , the before tax cost of debt is 7.6% and the firm's tax rate is 35% what is QM's weighted average cost of capital?
One of the home satellite services uses a dish antenna having a diameter of 18" (0.457 m) and frequency of 12.45 GHz. If the illumination efficiency is 70%, determine the gain of the antenna in dB
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