Question

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▶️difference between EMF and terminal potential❓​

Answer 1

Answer:

EMF

• difference between two terminals in open circuit is called emf
• it doesnt depend on external circuit
• it is a cause

TERMINAL PD

• difference between two terminals connected to external circuit
• it depends on external circuit
• it is effect

Answer 2

The electromotive force (emf) is the potential difference of a source when no current is flowing. Terminal voltage is the voltage output of a device is measured across its terminals. Terminal voltage is calculated by V = emf - Ir.