6.3.1
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(a) magnetic fields are due to moving charges or permanent magnets |
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| (b) magnetic field lines to map magnetic fields |
(c) magnetic field patterns for a long straight current-carrying conductor, a flat coil and a long solenoid |
(d) Fleming's left-hand rule |
(e) (i) force on a current-carrying conductor;
F = BI L sin θ |
(e) (ii) techniques and procedures used to determine the uniform magnetic flux density between the poles of a magnet using a current-carrying wire and digital balance |
| (f) magnetic flux density; the unit tesla. |
6.3.2 Motion of charged particles |
(a) force on a charged particle travelling at right angles to a uniform magnetic field;
F = BQv |
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| (b) charged particles moving in a uniform magnetic field;
circular orbits of charged particles in a uniform magnetic field |
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Learners will also require knowledge of 3.2, 3.3 and 5.2 |
(c) charged particles moving in a region occupied by both electric and magnetic fields; velocity selector. |
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6.3.3
Electromagnetism |
(a) magnetic flux φ;
the unit weber;
φ = BAcosθ |
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| (b) magnetic flux linkage |
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(c) Faraday's law of electromagnetic induction and Lenz's law |
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(d) (i) e.m.f. = − rate of change of magnetic flux linkage;
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(d) (ii) techniques and procedures used to investigate magnetic flux using search coils |
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| (e) simple a.c. generator |
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(f) (i) simple laminated iron-cored transformer;
for an ideal transformer |
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| (f) (ii) techniques and procedure |
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