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When a short grounded vertical antenna has a length L which is 0.05 1 at frequency f and if it's radiation resistances at f is R Ohms then its radiation resistance at a frequency 2f will be?
Wiki User
∙ 9y ago
In ideal conditions the radiation resistance of a short antenna is proportional to the square of the height in wavelengths. So doubling the frequency would produce 4 times the radiation resistance.
Rr is 1578(He/lambda)2 for a short antenna, He < lambda/8.
He is the effective height, equal to half the physical height for a simple monopole, rising to the physical height for a monopole with an infinite amount of horizontal top loading.
Wiki User
∙ 9y ago
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Because Brian McFadden was naughty, and Shane Filan told his Dad. Then Brian's dad said "That's it, you're grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded. Go to your room. NOW!" Brian then cried to his room, only to jump out of his window, then onto a tree. Then there was Shane. Shane had a gun, then shot Brian. Brian McFadden died.
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The question doesn't provide enough detail to give a definitive answer. The neutral PD is often used in protective functions on high resistance grounded generators (when grounded through a transformer). High resistance grounding limits the use of transformers - you must be using balanced loads, since very little current will flow (typically around 5-20amperes max) to the neutral. Because of this, phase to neutral values (such as voltage) are meaningless. Any current flowing in the neutral will cause an offset in all three phases from neutral. Since the neutral is high resistance grounded, it does not take a significant amount of current to cause significant offset.
How did Shane filan killed Bryan mcfadden?
Because Brian McFadden was naughty, and Shane Filan told his Dad. Then Brian's dad said "That's it, you're grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded, grounded. Go to your room. NOW!" Brian then cried to his room, only to jump out of his window, then onto a tree. Then there was Shane. Shane had a gun, then shot Brian. Brian McFadden died.
Can you get shocked from the casing of a piece of equipment if it is properly grounded?
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some radiation can be controlled through the use of a Faraday shield. a conductive sheet or mesh is place around the source and then grounded. Light is radiation and can be controlled in the obvious ways, with the exception of infra-red which can continue through most materials that would block out other visible light. There are many "types" of radiation. You may want to be more specific. Did you mean to say "radio-active material"?
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Rosy, I am beyond furious at this shocking behavior! Even more so since you were currently grounded. I want no more resistance from you, and no more of your abhorrent behavior lately. Bring me my cane, and bend over, for I will lash you until a new day is apon us.
