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Because it has a potential difference between the positive and negative terminals what can act as an electron pump?
Wiki User
∙ 13y ago
dry cell
Wiki User
∙ 13y ago
Wiki User
∙ 10y agoDry cell
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Why do electric cell have two terminals?
They are the negative and positive terminals. Higher potential andl ower potential terminals
How does potential difference make an electric current flow and what is the direction of that current?
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.
Copper is a good conductor of electricity because its electrons are what?
The copper (the positive protons) hold the inner negative electrons securely, but the outer most negative electrons of the copper atom are easily disloged and become free electrons, apply a potential difference (volts) between terminals of say a car battery, and the terminals are joined by copper wire then electrons will flow from one terminal to the other - the electron flow is from negative to positive terminal.Hope this helps I have just answered the question simply!
Why is it possible to measure an electric potential across the terminals of a dry cell?
Batteries are a voltage storage device that hold a voltage potential until used. By using a volt meter you can find the stored voltage by placing the leads of the meter across the battery's positive and negative terminals.
What part of the atom has a negative charge is the?
Electron Carries A Negative Charge.
It has a potential difference between the positive and negative terminals?
It is a battery.
Why do electric cell have two terminals?
They are the negative and positive terminals. Higher potential andl ower potential terminals
How do you tell the difference between a cathode and anode?
A:The difference is potential a anode requires a positive potential and the cathode requires a negative potential ANSWER : I wander what a zener will behave with this explanation. Both have cathode and anode terminals
The terminals of a diode are called the?
anode positive potential cathode negative potential
What is a voltage of a battery?
It is the potential difference between the positive and negative terminals of the battery. The unit of electrical potential is the volt, so the difference in potential between two ponts is also a quantity with units of volts, colloquially called the 'voltage' between the points.
Is the direction of current through a battery always from negative to positive on the terminals?
Conventional current flow is from positive to negative. Electron flow is from negative to positive
How is carbon zinc dry cell produces a voltage difference between the positive and negative terminals?
When the terminals are connected in the circuit
How does potential difference make an electric current flow and what is the direction of that current?
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.
In a 1.5V battery taking the negative terminal as 0.0V what is the electrical potential energy of an electron leaving the negative battery terminal?
Somebody is trying a trick question! The electron that comes out of the negative terminal has zero potential energy. With respect to the positive terminal it has -1.5V of electrical potential energy, and so does every other electron at 0.0V whether or not they came out of the battery.
Copper is a good conductor of electricity because its electrons are what?
The copper (the positive protons) hold the inner negative electrons securely, but the outer most negative electrons of the copper atom are easily disloged and become free electrons, apply a potential difference (volts) between terminals of say a car battery, and the terminals are joined by copper wire then electrons will flow from one terminal to the other - the electron flow is from negative to positive terminal.Hope this helps I have just answered the question simply!
What is the difference between U1R-7 and U1P-7 batteries?
Negative and positive terminals are reversed.
Why potential difference is necessary to produce current in circuit?
AnswerPotential 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.
