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If a 100 ohm resistor is needed in an electric circuit carrying a current of 0.3 amperewhat resistor would you select?
A 100 ohm resistor carrying a current of 0.3 amperes would, by Ohm's Law, have a potential difference of 30 volts. A current of 0.3 amperes through a voltage of 30 volts would, by the Power Law, dissipate a power of 9 watts.
You need a 10 watt resistor, alhough it is better to use a 20 watt resistor.
E = IR
30 = (0.3)(100)
P = IE
9 = (30)(0.3)
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Resistors are one of the three basic electronic components. They restrict the flow of current in an electrical circuit. Fixed resistors have a fixed value of resistance, and are used in almost every electronic circuit for lots of different reasons.
A can be used to reduce the current in a circuit?
A resistor.
What is series dropping resistor?
A series dropping resistor is a resistor that limits the amount of current flow in a circuit.
What is the circuit symbol for resistor?
Scroll down to related links and look at "Symbols for a resistor".
If voltage constant when the current increases what does the resistance do?
In an electric circuit, ratio of current and voltage is constant which is known as the resistance of the circuit. If voltage or current is to be changed the resistance has to be changed. You cannot keep an invariable resistance in the circuit and increase current while keeping voltage as constant.Hence to vary the voltage or current in a circuit different equipments like rheostat,potentiometer are used.
What is the type of circuit called when it has an conductor a switch a electric cell a resistor?
The type of circuit you are describing is known as a simple circuit. It consists of a power source (electric cell), a switch, a conductor (usually wire), and a resistor to control the flow of electric current.
What is meany by resistor?
Resistor is a component of an electric circuit that resist the flow of direct or alternating electric current . It can also limit or divide the current, reduce the voltage, protect an electric circuit, or provide large amounts of heat or light.
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Limits current flow and drops voltage.
What is the function of resistor in electric circuit?
the function of a resister is to lower the voltage.
Which device controls the flow of electrons in an electric circuit?
Flow of electricity in a circuit is controlled by using 'resistor'.
Name four common parts of an electric circuit?
Transistor, resistor, diode, output.
Why is an electromagnet a resistor?
An electromagnet is not a resistor; they are two different components in an electrical circuit. An electromagnet uses electric current to create a magnetic field, while a resistor resists the flow of electric current, which causes a voltage drop across it.
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what does a resistor in an ampliflyer circuit
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A battery is the device that creates a potential difference in an electric circuit. It establishes an electric field within the circuit that allows charges to move from the positive terminal to the negative terminal, creating an electrical current.
What is the amps In a simple electric circuit with a 12 volt supply and a 24 ohm resistor?
0.5 amps
What materials will made an electric circuit work?
a dry cell a resistor (a bulb maybe) wire switch
What are 3 function examples of resistor?
A resistor is really anything that uses electricity along an electric circuit, for example a light bulb, a computer, a radio, etc.
