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.
A: Two potential [voltage ] that are not the same and it could be of both polarity
i think it is a charge but you may know that maby a battrey if its small or a genarator if its big
The difference in voltage on the electro-chemical series of the 2 constituent elements.
Electrolytic cell
cell wall
Cell Wall
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.
Batteries
A voltage source is anything that provides a voltage; for example a cell or battery, or an electrical outlet in your home.
Potential Difference.
Voltage sources provide the voltage difference across an electrical circuit, these may be batteries, generators, alternators, solar cells, etc.
The voltage of a galvanic cell is the difference between the half cell potentials for the two reactions. For silver and nickel, this is about 1 volt.
No. The potential DIFFERENCE of a battery (or, more accurately, a dry cell) is 1.5 V.
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.
The difference in voltage on the electro-chemical series of the 2 constituent elements.
end cell voltage
A cell with a negative voltage charge.
The electrochemical cell develops voltage based on a difference in the internal half cell potential. Each half cells produces a chemical reaction which in turn produces a voltage that is affected by the concentration of reactants as well as the type of reactants within each.
The cell voltage.