A radio receiver has an input resistance of 300 ?. When it is connected directly to an antenna system with a characteristic impedance of 75 ?, an impedance mismatch occurs. By inserting an impedance-matching transformer ahead of the receiver, maximum power can be realized. Calculate the required turns ratio.
What will be an ideal response?
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Rod, pipe, and plate electrodes must have a resistance to ground of at least _____.
a. 25 ohms or less b. 35 ohms or less c. 45 ohms or less d. 75 ohms or less
The number one producer and consumer of rabbits in the world is:
A. U.S. B. France C. Asia D. Canada
Total pressure readings are taken on a duct system by:
A) Subtracting the velocity pressure reading from the static pressure reading. B) Pointing the pressure-sensing tube into the airstream. C) Adding the static pressure reading and the total pressure reading. D) Pointing the pressure-sensing tube perpendicular to the air stream.
How do automobile batteries differ from deep-cycle batteries? Which should be specified for a solar electric system?
What will be an ideal response?