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Chapter overview
Study Electricity and Magnetism through notes, flashcards, revision, MCQs, and long-answer practice.
Practice ready
24856 MCQs and 16447 written prompts are ready for focused chapter work.
Topics
13
Recall
39
Cards
78
Topic 1
Current is the rate of flow of charge, and potential difference is the work done per unit charge.
Topic 2
At constant temperature, current is directly proportional to potential difference across a conductor.
Topic 3
Resistance depends on length, area, and material, while resistivity is the material property behind it.
Topic 4
Series connections increase total resistance, while parallel connections provide multiple current paths and reduce...
Topic 5
A cell's emf is its total energy supply per charge, but terminal voltage can drop because of internal resistance.
Topic 6
Electric power is the rate at which electrical energy is used or converted.
Topic 7
Safe household circuits depend on correct wiring, earthing, fuses, and sensible load distribution.
Topic 8
Magnetic field lines show the direction and relative strength of a magnetic field.
Topic 9
A current-carrying conductor in a magnetic field experiences a force whose direction depends on the field and current.
Topic 10
A DC motor converts electrical energy into mechanical rotation using magnetic force on a current-carrying coil.
Topic 11
An emf is induced when magnetic flux linked with a conductor changes.
Topic 12
Transformers change alternating voltage levels by electromagnetic induction in linked coils.
Topic 13
Domestic electric circuits are planned to supply appliances safely at the correct potential difference.
Chapter pack
Topic list
Topic 21
Current, potential difference, charge flow, ammeter, voltmeter, and circuit basics.
Topic 22
Relationship between voltage, current, resistance, V-I graphs, and limitations of Ohm's law.
Topic 23
Factors affecting resistance, resistivity, conductor dimensions, and material dependence.
Topic 24
Equivalent resistance, current and voltage distribution, and circuit comparisons.
Topic 25
EMF, terminal voltage, internal resistance of a cell, lost volts, and simple circuit calculations.
Topic 26
Power formulae, electrical energy, commercial unit, appliance rating, and billing numericals.
Topic 27
Ring main system, earthing, fuses, switches, household power, and energy calculations.
Topic 28
Magnetic field patterns, field lines around magnets and current-carrying conductors.
Topic 29
Motor effect, Fleming's left-hand rule, factors affecting force, and electric motor basics.
Topic 30
Construction, working, split-ring commutator, brushes, and energy conversion in a DC motor.
Topic 31
Induced current, Fleming's right-hand rule, AC/DC generators, and transformer idea.
Topic 32
Step-up and step-down transformers, turns ratio, voltage ratio, and power transmission.
Topic 33
Live, neutral, earth wires, fuse, MCB, short circuit, overloading, and household safety.
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