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High voltage transmission line insulator are also made of glass.
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∙ 6y ago
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What is resistance welding?
Arc. It's where electrical resistance is used to create the heat for the welding process.
What symbol is often used for electrical resistance?
I have never come across a symbol for an electrical resistance box. As the resistance box is a test instrument and it would not be drawn on any electrical schematic there may not be a symbol designated for it. The last letter of the Greek alphabet is (Ω omega) and it is used for the electrical symbol for resistance.
What is resistance expressed in?
Electrical resistance is measured in Ohms.
What instrument is used to vary electrical resistance in a device?
Virtually all electrical devices (actually, all except for superconducting devices) have resistance. There is one type of electrical device that is found in almost every electronic circuit ever invented. It is used wherever the designer needs a specific amount of resistance in the circuit. I'd hate to spoil your fun by simply telling you its name. Think of all of the different names of electrical devices that your teacher has told you about. (or look in the index of your text book if you're in a hurry) Is there one that comes to mind when you think of RESISTance?
What is the resistance of a unit used to mersure it?
The conventional unit of electrical resistance is the ohm
What measures electrical resistance?
an ohm meter OR multimeter is used to measure the electrical resistance...
What is the name of an instrument used to vary electrical resistance?
Rheostat is the name of an instrument used to vary electrical resistance.
What are some ways a material's electrical resistance is used to accomplish a certain job?
A good example of electrical resistance is the heating element on a stove top it is a very poor conductor (high electrical resistance) because it is a poor conductor the electrical energy is converted to heat. Glass is one of the best insulators because its electrical resistance is so high it is a non conductor this lets us use it on high power lines to keep the electricity from coming in contact with the ground.
Does sugar create electrical resistance?
Sugar is not used in electrical circuits.
What is insulation resistant?
It is the resistance of insulating material in electrical equipment e.g. electric motors, etc., measured in megohms.Some materials like glass, mica and others are classified as insulators because their resistance to the flow of electrical current is very high.The basic unit of resistance is the ohm. A megohm means a resistance equal to 1 million ohms.
Does glass reduce resistance of soil?
Glass is used as an insulator, so I would say no.
What is insulating material used for?
insulating materials have low thermal/electrical conductivity values and hence can be used in applications where resistance to heat or resistance to the passage of electrical current is required.
What is resistance welding?
Arc. It's where electrical resistance is used to create the heat for the welding process.
What is the ohm unit used to measure?
Ohms measure electrical resistance. The resistance in ohms is the voltage divided by the current.
What symbol is often used for electrical resistance?
I have never come across a symbol for an electrical resistance box. As the resistance box is a test instrument and it would not be drawn on any electrical schematic there may not be a symbol designated for it. The last letter of the Greek alphabet is (Ω omega) and it is used for the electrical symbol for resistance.
What is the definition of equivalent resistance?
Equivalent series resistance (ESR) is an effective resistance that is used to describe the resistive parts of the impedance of certain electrical components.
What are multimetres used for?
Measuring a variety of electrical parameters: resistance, voltage, current.
