0
What instrument is used to vary electrical resistance in a device?
Wiki User
∙ 12y ago
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?
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
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.
Ohm meter mean and their use?
An ohmmeter is an electrical instrument that measures electrical resistance, but instead of hairsprings to supply a restoring force they used conducting of the first pair of leads and their contact resistances is ignored by the meter.
What is resistance welding?
Arc. It's where electrical resistance is used to create the heat for the welding process.
What instrument measures voltage in a current?
Resistance is the name given to something which opposes the flow of an electrical current in a circuit and an ohmmeter is used to measure it.The Ohm is the name of the unit used to measure resistance.Further noteThe most common type of instrument used to measure resistance is a multimeter, which includes an ohmmeter, an ammeter to measure the current flow in amps and a voltmeter to measure the potential difference in volts.
What is the instrument used to measure the state of electrical charge in a storage battery?
Hydrometer
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 electrical measuring instrument is used to measure polarity index test?
A low resistance ohmmeter is used
What measures electrical resistance?
an ohm meter OR multimeter is used to measure the electrical resistance...
What is an absorption dynamometer?
An absorption dynamometer is an instrument used to measure force, by measuring the energy absorbed via friction or electrical resistance.
What kind of tests is a megger used for?
A megger is an instrument that generates a high voltage. That high voltage is then used for measuring insulation resistance, especially that of electrical devices.
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 medical term meaning instrument to measure the electrical activity of the brain?
The medical term is electroencephalograph (EEG), which is a device used to measure the electrical activity of the brain.
How you use a multimeter?
A multimeter is an instrument used to check for AC or DC voltages, resistance and continuity of electrical components, and small amounts of current in circuits. This instrument will let you check to see if there is voltage present on a circuit.
How do you use a multimeter?
A multimeter is an instrument used to check for AC or DC voltages, resistance and continuity of electrical components, and small amounts of current in circuits. This instrument will let you check to see if there is voltage present on a circuit.
Ohm meter mean and their use?
An ohmmeter is an electrical instrument that measures electrical resistance, but instead of hairsprings to supply a restoring force they used conducting of the first pair of leads and their contact resistances is ignored by the meter.
Does sugar create electrical resistance?
Sugar is not used in electrical circuits.
What check should be done to an electrical measuring device before attempting to measure electrical resistance?
An electronic measuring device also known as a multimeter is used to check the electrical voltage in homes and industrial areas. The checks that need to be done before a multimeter is used is the to plug the black test lead into the black socket marked com. The red lead plugs into the red socket marked voltage and resistance.
