In the US the standard height of a utility pole is 40 feet, and is buried six feet into the ground. The tallest utility poles have reached 120 feet because of clearance requirements in the area.
The two main factors are the frequency and the number of poles of the motor. A formula for RPM is HZ x 60 x 2/ number of poles the motor has.
7 [ft] ..............refer to NESC for details
The first electric garage door opener was invented by C.G. Johnson in the year 1926 in India, Hartford City. Before that the electric garage door opener wasn't very popular.
Electrons are a negative charge. Using conventional notation current flows from positive to negative poles of a battery, for example. In electron flow convention the electrons flow from negative to positive.
There is no specific collective noun for electric poles, in which case a general collective noun that suits the situation is used; for example, a series of electric poles, a line of electric poles, a clutter of electric poles, etc.
Electric poles and wires are usually maintained and repaired by electric utility companies, such as power companies or municipal electric departments. These organizations have trained technicians and lineworkers who are responsible for installing, maintaining, and fixing electric poles and wires to ensure a reliable electricity supply.
two vertical poles of equal height stand on either of a roadway wich is 20 ft wide. At a point in the roadway b/n the poles, the elevation of the taps of the poles are 30 degree and 60 degree. Find the height of the poles?
Like poles repel; opposite poles attract. They are similar to electric charges, for they can both attract and repel without touching. ... Electric charges produce electrical forces and regions called magnetic poles produce magnetic forces.
In the US the standard height of a utility pole is 40 feet, and is buried six feet into the ground. The tallest utility poles have reached 120 feet because of clearance requirements in the area.
They both weigh and cost less.
That is not correct. Electric field lines originate from positive charges and terminate on negative charges. In the case of a uniform electric field, the field lines run from the positive plate to the negative plate.
Both magnetic poles and electric charges produce forces that can attract or repel other poles or charges. Like charges repel each other and opposite charges attract, similar to how like magnetic poles repel and opposite magnetic poles attract. Additionally, both magnetic poles and electric charges can create fields that exert forces on nearby objects.
Opposite poles attract, like poles repel. (same with electric charge)
6 foot
Yes, magnetic poles, like electric charges, can attract or repel each other based on their orientation. Similar poles repel each other, while opposite poles attract. This behavior is a common characteristic of both magnetic and electric fields.
on the left