Q1. what is the differences differences between potential differences and emf?
Q2. what is Z-eff?
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Answers
Answer:
Difference between EMF and Potential Difference
Electromotive Force (E.M.F)
Potential Difference
The difference in the potential of two electrodes of a battery. Difference of potential between any two points on the circuit.
E.M.F is always greater than the potential difference between any points in the circuit. This is always less than the E.M.F
Formula: E = I(R + r) Formula: V = IR
This is caused by the electric, gravitational and magnetic fields. This difference is only produced by the electric field.
The electromotive force is the amount of energy given to each coulomb of charge. The potential difference is the amount of energy utilized by one coulomb of charge.
The electromotive force is independent of the circuit’s internal resistance. The potential difference is proportional to the circuit’s resistance.
The electromotive force is responsible for transferring energy across the circuit. The potential difference between any two places on the circuit is a measure of energy.
When the circuit is unchanged, the magnitude of the electromotive force is always larger than the potential difference. When the circuit is completely charged, the size of the potential difference is equal to the circuit’s emf.
The electromotive force is measured using an emf meter. The potential difference is measured with a voltmeter
Answer:
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Explanation:
Difference between EMF and Potential Difference
Electromotive Force (E.M.F)
Potential Difference
The difference in the potential of two electrodes of a battery. Difference of potential between any two points on the circuit.
E.M.F is always greater than the potential difference between any points in the circuit. This is always less than the E.M.F
Formula: E = I(R + r) Formula: V = IR
This is caused by the electric, gravitational and magnetic fields. This difference is only produced by the electric field.
The electromotive force is the amount of energy given to each coulomb of charge. The potential difference is the amount of energy utilized by one coulomb of charge.
The electromotive force is independent of the circuit’s internal resistance. The potential difference is proportional to the circuit’s resistance.
The electromotive force is responsible for transferring energy across the circuit. The potential difference between any two places on the circuit is a measure of energy.
When the circuit is unchanged, the magnitude of the electromotive force is always larger than the potential difference. When the circuit is completely charged, the size of the potential difference is equal to the circuit’s emf.
The electromotive force is measured using an emf meter. The potential difference is measured with a voltmeter