What should be the height of a dipole antenna (of dimensions 1/4 wavelength) if it is to transmit 1 200 kHz radiowaves?
a. 11.4 m
b. 60 cm
c. 1.12 m
d. 62.5 m
e. 250 m
D
You might also like to view...
Reactance: A 0.200-H inductor is connected to a 60.0-Hz 120-V rms source.(a) What is the inductive reactance?(b) What is the rms current to the inductor?(c) If both the inductance and the frequency were doubled, what would be the rms current?
What will be an ideal response?
Wave Characteristics: At a certain instant in time, the electric field of an electromagnetic wave in free space points in the -z direction, and the magnetic field points in the +y direction. In what direction is this wave traveling?
A. +x direction B. -x direction C. +y direction D. -z direction E. +z direction
From the edge of a roof top you toss a green ball upwards with initial speed v0 and a blue ball downwards with the same initial speed. Neglect air. When they reach the ground below
A) the green ball will be moving faster than the blue ball. B) the blue ball will be moving faster than the green ball. C) the two balls will have the same speed.
If you load up a circuit in your home with too many devices, like lightbulbs or stereos, in ________, then you can overload the circuit and trip a circuit breaker or blow a fuse.
A. duplicate B. series C. parallel D. summer