Physics A-Level
E.m.f.
What E.m.f. means in Physics A-Level, as defined for OCR.
Definition of E.m.f.
Check what you remember
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Reference: OCR
The energy transferred from other forms, such as chemical energy in a cell, to electrical energy per unit charge as charge passes through the source.
Topics that use E.m.f.
- E.m.f. and p.d (OCR A-Level)
Related terms
- Applying W = VQ and W = EQ
- Electromotive force (e.m.f.)
- Energy transfer and charge
- Energy transfer in electric fields
- Internal resistance and terminal p.d.
- Kinetic energy of charged particles
- Potential difference
- Series and parallel p.d.
Using E.m.f. in the exam
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