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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 resistor in electric circuit?
the function of a resister is to lower the voltage.
What is the function of a combination pliers in an electric circuit?
for made of electric circuit safety device,
What is the function of the voltmeter in an electric circuit?
A voltmeter is a device to measure the voltage in a electric circuit, and must have be connected in parallel to it.
The function of a capacitorin an electric circuit is to?
The function of a capacitor or an electric circuit is to store energy. It keeps this energy stored until it is need for release at a later time.
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 build in an electric circuit?
I have never heard of an electrical term "build" in an electrical circuit.
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 aspect of a series circuit is the same for each resister as well the total circuit?
current
What is the function of a battery in an electric circuit?
To provide electricity for the bulb to light up.
What is the function of 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 the function of the breaker for an electric range?
The function of the breaker for an electric range is to protect the appliance and the electrical circuit from overloading or short circuits by interrupting the flow of electricity when there is a problem.
What is the function of connectors in electric circuit?
it lets the energy flow from the power scource to load
