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Does increasing the voltage across a resistor increase the electric current through the resistor?
Resistance is not affected by either voltage or current. It is determined only by the cross-sectional area, length, and resistivity of the material. As resistivity is affected by temperature, resistance is indirectly affected by temperature.
In the so-called 'Ohm's Law' equation, resistance is a constant. So, if you increase voltage, the resistance remains constant, and the current would increase in proportional to the voltage.
What else can I help you with?
What allows the current to enter the electronromagnet in an electric motor?
The resistor allows current to enter the electromagnet in an electric motor. The resistor regulates the amount of current that enters the electric motor.
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 are the factors that influence the speed of the direct-current shunt motor with increasing load?
.The magnitude of the voltage and current of both the armature and shunt field coil. To decrease the speed when the load is increasing then increase the shunt field current while decreasing the armature voltage or current. To increase the speed while the load is increasing then increase the armature current while decreasing the shunt field current. The decreasing and increasing of these currents and voltages can be done by connecting a variable resistor in series or parallel with each of the armature and/or shunt field coil.
What are the components of a resistor?
Resistance is the property of a component which restricts the flow of electric current.
When you add a resistor to a series circuit what will happen to the total current?
increase.
Would increasing the resistance increase electric current?
no
What does a variable resistor do and how does it affect the flow of electric current in a circuit?
A variable resistor is a component that can change its resistance value. By adjusting the resistance, it can control the flow of electric current in a circuit. Increasing the resistance reduces the current flow, while decreasing the resistance increases the current flow. This allows for precise control of the current in a circuit.
What will increasing the electric current to an electromagnet do to its magnetism?
An increasing electric current moving into an electromagnet will become stronger in its magnetism. As the atoms align the increasing magnetism will stop at one point, making the electromagnet as strong as it can be.
What allows the current to enter the electronromagnet in an electric motor?
The resistor allows current to enter the electromagnet in an electric motor. The resistor regulates the amount of current that enters the electric motor.
How does increasing the electric field magnitude along a wire affect the current density?
Increasing the electric field magnitude along a wire will increase the current density. This is because a higher electric field will cause more electrons to move through the wire, resulting in a higher flow of electric current.
How does current change through a resistor?
When an electric current flows through a resistor, the resistor resists the flow of the current, causing a decrease in the current. This decrease in current is proportional to the resistance of the resistor, as described by Ohm's Law.
What methods can be used to increase the electric current flowing through a circuit?
To increase the electric current flowing through a circuit, you can use methods such as increasing the voltage, reducing the resistance in the circuit, or adding more power sources.
How does adding a resistor to an electric circuit affect the current flow?
Adding a resistor to an electric circuit reduces the current flow by impeding the flow of electrons. The resistor increases the resistance in the circuit, which in turn decreases the amount of current that can pass through.
Is a resistor considered a conductor?
No, a resistor is not considered a conductor. Resistors are components that impede the flow of electric current, while conductors allow electric current to flow easily.
How can you increase the amount of electric current produce by generator?
To increase the amount of electric current produced by a generator, you can increase the rotational speed of the generator, increase the strength of the magnetic field within the generator, or increase the number of turns in the generator coils. These methods will result in a higher induced voltage and therefore a higher electric current output.
How can we increase the magnitude of the magnetic field of an electric magnet?
You can increase the magnitude of the magnetic field of an electromagnet by increasing the number of turns in the coil, increasing the current flowing through the coil, and using a ferromagnetic core material within the coil. These factors collectively enhance the strength of the magnetic field generated by the electromagnet.
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.
