0
Still curious? Ask our experts.
Chat with our AI personalities
Lao
Beau
Judy
Add your answer:
Earn +20 pts
What is an antenna used in space for?
Radio waves are a form of electromagnetic radiation, and they don't require a medium to pass through (like water, sound, or seismic waves.) So they work in space, which makes it real handy for astronauts for communicate with each other.
What is EMF used for?
assuming you mean electromotive force: emf is the main principle behind power transformers. emf also comes in the form of radio waves, which are used for radio transmission (obviously)
What type of electromagnetic wave is the largest?
The section we call 'radio'. Of course, there's no end to the electromagnetic spectrum, at least not on the low-frequency end, so there's really no such thing as "greatest" wavelength. As frequencies go down past radio and below, wavelength just keeps getting longer ... the bit of radiation from the 60 Hz utility power lines has a wavelength of almost 5,000 kilometers ( ! ! ). But we don't use anything down there in the form of radiation ... antennas would need to be gigantic in order to be the least bit efficient ... so there's no popular name for the radiated form. The 'generic' answer to the question is: The type with the lowest frequency.
How do you prevent signal interference with other electrical devices?
It depends on the type of interference, but most shielded cables are used in a copper cable setup. You could also use fiber optic cable if concerned about electrical devices but it might prove too expensive.
What are the electronics and communication engineering applications of vector calculus?
The theory of radio waves and waveguides is explained in terms of equations in the form of vector calculus. Examples are Maxwell's equations.
