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SELF-ASSESSMENT CHECKLIST
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appreciate that electric charge is conserved and quantised
18.1
state and apply Coulombâs law
18.1
understand the concept of an electric field
18.1
solve problems with electric fields
18.1
draw the electric field patterns for simple arrangements of charges
18.1
describe Millikanâs experiment
18.1
understand the concept of a magnetic field
18.2
draw the magnetic field patterns for straight wires, coils and loops of current as well as for permanent magnets
18.2
solve problems with magnetic forces on moving charges and currents
18.2

understand the concept of electric potential and electric potential energy
18.3
calculate the work done when a charged particle is moved in an electric field
18.3
calculate the total energy of a charged particle in an electric field
18.3
appreciate that electric field lines and equipotential surfaces are normal to each other
18.3
REFLECTION
Do you understand what is meant by charge conservation? Do you understand what is meant by charging by induction? Can you solve problems with Coulombâs law? Do you understand the concept of electric field? Can you solve problems involving electric field strength? Can you describe the Millikan experiment and its consequences? Do you understand the concept of magnetic field? Can you draw the magnetic field patterns due to a bar magnet and current carrying straight wires, circular loops and coils? Can you find the direction of the magnetic force on moving charged particles and between current carrying straight wires, circular loops and coils? Can you solve problems involving the formula for magnetic force per unit length?

Do you understand the concepts of electric potential and electric potential energy? Can you solve problems involving electric potential and electric potential energy? Can you solve problems with energy conservation in electric fields?
EXAM-STYLE QUESTIONS
You can find questions in the style of IB exams in the digital coursebook.