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Voltage is the colloquial term. Actually the word potential difference is to be used. More over emf is another term to be used. Emf is the pd of a cell when it is not placed in a closed circuit or the cell does not deliver any current. As the cell delivers the current then emf will be reduced by an amount of pd across the internal resistance of the cell.
Here emf is by chemical energy converted into electrical form
Same emf can also be produced by using magnetic flux or heat energy and even mechanical energy.
If we use magnetic flux then it is known as electromagnetic induction
As we use heat, then it is termed as thermo emf
Even mechanical energy gives out emf in case of crystals. This is known as piezo electricity
Also as we make a circuit with a cell, resistance and a switch and as we switch on then current flows through resistance and a potential drop is produced across the resistance given by the expression V = i R
This is also known as the voltage drop across the resistor.
AnswerVoltage, or potential difference, is created by charge separation which, as the previous answer indicates, can be achieved in numerous ways. A simple chemical cell or battery, for example, separates charge chemically, causing an imbalance in the quantity of electrons in and, therefore, the charges on, its two electrodes. As a result, one electrode has a higher potential than the other, so there is a potential difference between the two.
What else can I help you with?
What is the correct voltage of a chemical cell that has reached equilibrium?
The correct voltage of a chemical cell at equilibrium is zero. This is because at equilibrium, the rates of the chemical reactions within the cell are equal and there is no net flow of electrons, resulting in no potential difference.
What is the voltage of a battery of three cells if one is connected the wrong way round?
The voltage of a battery with three cells connected in series is the sum of the individual cell voltages. If one cell is connected the wrong way round, the total voltage will be reduced by the voltage of that cell.
Can you describe how batteries are sources of voltage?
The number of cells in a battery determine the battery's voltage. Different types of batteries have different cell voltages. The cell voltage is dependant on the reactive metals used. A typical car battery will have six cells. Because a typical cell voltage has a source voltage of approximately 2.0 volts, this makes a car battery produce a voltage of 12 volts.
What kind of cell has non spontaneous voltage?
Electrolytic cell
How can a galvanic cell become electrolytic cell?
A galvanic cell can become an electrolytic cell by applying an external voltage that is of opposite polarity to the cell's spontaneous voltage. This external voltage can overcome the natural tendency of the cell to generate electricity and drive a non-spontaneous chemical reaction in the reverse direction, converting it into an electrolytic cell.
What A voltage source such as a?
A voltage source is anything that provides a voltage; for example a cell or battery, or an electrical outlet in your home.
What are other terms for cell voltage?
Potential Difference.
What provides the voltage difference in an electric circuit?
Voltage sources provide the voltage difference across an electrical circuit, these may be batteries, generators, alternators, solar cells, etc.
What is the correct voltage of a chemical cell that has reached equilibrium?
The correct voltage of a chemical cell at equilibrium is zero. This is because at equilibrium, the rates of the chemical reactions within the cell are equal and there is no net flow of electrons, resulting in no potential difference.
What is meant by a cell has a voltage of 1.5volt?
No. The potential DIFFERENCE of a battery (or, more accurately, a dry cell) is 1.5 V.
Which part of a flashlight provides a voltage difference?
The batteries in a flashlight provide the voltage difference needed to power the bulb. The chemical reaction inside the batteries generates electrical energy which creates the potential difference, or voltage, between the positive and negative terminals of the battery.
What its provides energy that pushes the free electrons in a conductor?
A voltage difference, also known as an electric potential difference, provides the energy that pushes free electrons in a conductor. This voltage creates an electric field that exerts a force on the electrons, causing them to move through the material.
What is the voltage of a galvanic cell made with silver an nickel?
The voltage of a galvanic cell made with silver and nickel will depend on the specific conditions of the cell, such as the concentrations of the electrolytes and the temperature. Typically, a cell made with silver and nickel could have a voltage range between 0.8 to 1.0 V.
What is responsible for lost volts of a cell?
A cell has internal resistance, which means that some of the potential(voltage) it provides is used up just in getting current out of the cell and into the circuit.
What factors determine the voltage in a voltaic cell?
A voltaic cell has metal in it, so the types of metals can increase or decrease the voltage. The surface area of the metals in the acid (which must be used to generate electricity) can also increase or decrease the voltage. This is very basic, but I hope it helps.
What is the voltage of the galvanic cell made with silver and nickel?
The voltage of a galvanic cell made with silver and nickel will depend on the specific half-reactions involved. However, using standard reduction potentials, the cell voltage can be calculated as the difference between the reduction potentials of the two metals.
What is an electrolytics cell?
A cell with a negative voltage charge.
