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Potential difference, voltage, is a force that will cause electrons (negative charges) to move if they can. Voltage is the motive power behind electron flow, and electron flow is the current. In a battery, we have voltage between (or across) the terminals from chemical energy inside. We don't have to have current flow to have the voltage. Some might think of voltage as "electrical pressure" because it is a force. That isn't a bad way to look at it. If we connect some wires and put a light bulb and a switch in series across the terminals of the battery, we have a circuit. If we close the switch, voltage, which was present all the time, will now cause electrons to flow through the wire and light the bulb. The battery has a positive terminal and a negative terminal. The positive terminal will take in electrons and the negative terminal will send them out. Current flows in only one direction. The potential difference created by the battery has energized the circuit and current flowed from the negative terminal of the battery, out through the circuit, and back to the positive one.
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8 If the resistance of an electric circuit is 12 ohms and the voltage in the circuit is 60 V the current flowing through the circuit is?
There is a simple equation relating voltage (properly potential difference), current and resistance: V=IR Where V=potential difference, I=current and R=resistance So to answer: I=60/12 I=5
When the potential is high the current passing through a conductor it is also high true or false?
I think you mean when the 'potential difference' is high, is the current also high? The answer is that it depends on the impedance (a.c.) or resistance (d.c.) of the circuit. If this remains constant, then raising the potential difference will cause the current to increase too.
What is voltage drop in an electrical circuit?
When a current flow on a conductor , or load or resistor, some voltage will drop across that load or resistor.AnswerA voltage drop is the potential difference appearing across individual components in a circuit, necessary to drive current through those components. The sum of the individual voltage drops around a series circuit will equal the supply voltage applied to that circuit.
What are two of the main requirements that allow electric charge to flow in an electric circuit?
In order to have a valid electric circuit, two requirements must be met: there must be a potential difference within it (measured in Volts), and current must be flowing through it (measured in Amperes). That implies that the three basic blocks of a circuit are present - a power source (that defines the potential and supplies the current), conductors (which connect the power source to the load), and the load, which consumes current to do some work. Coincidentally, lack of a potential difference means that there are no charges "willing" to travel between point A and point B, which means that there is no current flowing from A to B (or otherwise), in regard to just these two measurement points. Of course, if you connect just your voltmeter to a battery, you will see a readout - that is because the voltmeter completes the circuit (and is doing some work for you), and since the circuit is complete, the current is flowing, and that implies a difference of potential.
What is the difference between constant current bias and current mirror circuit?
current mirror circuit produce more stability as compared to biased circuit.
What conditions are necessary for a current to be present in a circuit?
some resistance and potential difference
Why potential difference is necessary for the flow of current?
fu
What type of current has steady potential difference across a circuit?
That would be DC or Direct Current.
When does current stop flowing in a circuit?
Current flows in a circuit when there is a difference in electronic potential between two points.
What happens to current in a simple circuit as potential difference is increased?
depends on the simple circuit. please describe it.
Does potential difference change with change in resistance?
Changing the potential difference in a circuit does not change the resistance. Rather, it changes the current.
What kind of force keeps current flowing in a circuit?
Electric potential difference or voltage is the force that keeps current flowing in a circuit. The potential difference creates an electric field, which in turn exerts a force on the charged particles in the circuit, causing them to move and establish a current flow.
How does voltage produce current?
Voltage across two terminals mean there exists a potential difference, and when the circuit gets closed, due to this potential difference the current flow.
Why does the potential difference change in a series circuit?
In a series circuit, the total potential difference provided by the power source is divided among the components in the circuit. As current flows through each component, there is a voltage drop across each one. This results in a reduction of potential difference as you move along the circuit.
If there are 2 points with different potential energy will there still be an electrical current through the circuit?
Not necessarily. The two points with potential difference, will have to be connected via a conductor, for current to flow.Provided that a circuit exists, then current WILL flow.
Is the potential difference across an electric circuit with no element drawing current from it the same at every pt?
Yes, in a circuit with no current draw, the potential difference is the same at every point in the circuit. This is due to the conservation of energy principle in electric circuits.
What is the potential difference in electricity?
Potential difference, also known as voltage, is the force that drives the flow of electric current in a circuit. It is measured in volts and represents the energy per unit charge available to a charge to move in an electric field. A higher potential difference leads to a greater flow of current in a circuit.
