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homeworkhelpls
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- Homework Statement
- thats the statement
- Relevant Equations
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Are lost volts the difference between EMF and terminal pd?
Actually its a general question, but the circuit used is say for example a potential dividerberkeman said:By "lost volts" I'm assuming you mean "voltage drop". Can you post a typical circuit that has generated this question?
Maybe terminology varies regionally, but here in the UK that’s exactly what is meant by ‘lost volts’ for an electrical source.homeworkhelpls said:Are lost volts the difference between EMF and terminal pd?
EMF (Electromotive Force) is the total energy supplied per coulomb of charge by a power source, such as a battery or generator, when no current is flowing. It is the maximum potential difference the source can provide and is measured in volts.
Terminal potential difference is the voltage measured across the terminals of a power source when it is delivering current to a load. It is usually less than the EMF due to internal resistance within the power source.
Lost volts refer to the voltage drop that occurs within the power source itself due to its internal resistance. It is the difference between the EMF and the terminal potential difference when current flows through the circuit.
The difference between EMF and terminal potential difference is calculated by subtracting the terminal potential difference from the EMF. This difference represents the lost volts due to the internal resistance of the power source.
Terminal potential difference is usually less than EMF because of the internal resistance of the power source. When current flows through this internal resistance, a voltage drop occurs within the source itself, reducing the voltage available at the terminals.