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A variable resistor usually has three terminals, one of which is connected to the 'wiper' by which means its resistance is measured.
By using all three terminals, we can control the potential difference in a circuit. When used in this way, we call the variable resistor a 'potentiometer'.
By using two of the three terminals, one of which must be connected to the variable wiper, we can control the current passing through circuit. When used in this way, we call the variable resistor a 'rheostat'.
What else can I help you with?
What is the function of a voltmeter in an electrical circuit?
To measure Voltage which is the force pushing current :)
What is the Function of light bulb in an electric circuit?
The function of a light bulb in an electric circuit is that it turns electrical energy into light.
What is a discrete semiconductor?
A discrete semiconductor is an individual circuit that performs a single function affecting the flow of electrical current.
What instrument measures electrical earth resistance?
A multimeter device can measure resistance, current, AC/DC voltage, and it also can determine continuity on an electrical circuit, and its range for current, voltage and resistance is widely variable.
Will overcharging cellphone cause electrical short circuit?
No, overcharging cellphone will not cause an electrical short circuit.
What is the function of resistor in electric circuit?
the function of a resister is to lower the voltage.
What is the function of a cell in an electrical circuit?
it's function is to supply energy(electric)
What is the function of a resister in an electric circuit?
A variable resistor usually has three terminals, one of which is connected to the 'wiper' by which means its resistance is measured. By using all three terminals, we can control the potential difference in a circuit. When used in this way, we call the variable resistor a 'potentiometer'. By using two of the three terminals, one of which must be connected to the variable wiper, we can control the current passing through circuit. When used in this way, we call the variable resistor a 'rheostat'.
What is the function of a build in an electric circuit?
I have never heard of an electrical term "build" in an electrical circuit.
What components are placed in an electrical circuit to control the amount of resistance in circuit?
resistors, variable potentiometers
How do batteries function within an electrical circuit?
Batteries function within an electrical circuit by converting chemical energy into electrical energy. When connected to a circuit, the battery's chemical reactions create a flow of electrons, which generates a voltage that powers the circuit.
What is the function of the negative terminal in an electrical circuit?
The negative terminal in an electrical circuit serves as the point where electrons flow out of the circuit, completing the electrical circuit and allowing the flow of electric current.
What is the function of the negative anode in an electrical circuit?
The negative anode in an electrical circuit serves as the point where electrons flow out of the circuit, completing the electrical circuit and allowing for the flow of electric current.
What is the function of a neutral wire in an electrical circuit?
The function of a neutral wire in an electrical circuit is to provide a return path for the current to flow back to the power source, completing the circuit and ensuring a balanced flow of electricity.
What is the function of the positive terminal in an electrical circuit?
The positive terminal in an electrical circuit serves as the point where current flows into the circuit from an external power source, providing the energy needed for the circuit to operate.
What is an electrical path that is not complete?
An electrical path that is not complete is called an open circuit. In an open circuit, there is a break in the path that prevents the flow of electricity, so the circuit is not complete and devices connected to it will not function.
What aspect of a series circuit is the same for each resister as well the total circuit?
current
