Course Content
D.1 Gravitational fields
0/26
Comparison of Gravitational force exerted on two moons by same planet
02:28
Derive an expression of escape velocity in terms of field strength (for HL)
03:18
Position between Earth & Moon where net field strength is zero
01:51
Comparing Time periods & Energies of two satellites (for HL)
03:34
Definition of gravitational field strength
01:57
Find fundamental unit of gravitational potential
01:36
Find height where orbital velocity is half of escape velocity (for HL)
02:28
find Gravitational field strength at some distance from earth
01:44
Find ratio of orbital velocities of two satellites around different planets (for HL)
02:04
Find orbital velocity at height equal to radius of Earth
01:42
Work done on satellite to move from one orbit to other (for HL)
02:51
Find gravitational field strength at surfaces of two planets
03:12
Energy changes when a satellite is moved from one orbit to other (for HL)
04:48
Ratio of gravitational field strengths at two positions
03:04
comparison of escape velocities on Earth & Moon (for HL)
02:00
Find orbital velocity in terms of escape velocity at certain height (for HL)
01:48
Newton’s law of gravitation graph
01:43
Newton’s law of gravitation & Newton’s third law
02:49
Gravitational potentials of two equipotential surfaces (for HL)
02:26
Benifit of Newton’s law of gravitation
02:20
Equipotential surface, gravitational potential & energy (for HL)
03:32
Energies of two satellites in different orbits (for HL)
03:42
Ratio of escape speeds at surfaces of Moon and Earth (for HL)
01:50
Gravitational potential & work done (for HL)
02:17
Find position where two field strengths are equal
03:08
Comparison of escape speeds of two planets (for HL)
03:22
D.2 Electric and magnetic fields
0/28
Find direction of resultant electric field strength due to three charges
03:26
A particle of mass ”m” is in equilibrium in electric field
03:39
Determine direction of Electric field and electric force
02:03
Find ratio of two charges (a charge is placed between two similiar charges)
03:03
Find direction of electric force due to 4 charges at a point
03:09
Find charge quantity in uniform electric field
01:52
Calculate magnitude of Electric field strength & force
02:03
Work done on charge and its acceleration (for HL)
03:32
Use of magnetic field lines
02:24
Find change in potential in uniform electric field
02:30
Find Resultant field strength between two opposite charges
02:31
Electric force & Equipotential surface (for HL)
02:00
Calculate work on charge in uniform Electric field
02:22
Electric field strength vs distance graph
02:06
Gain in kinetic energy & work done on charge (for HL)
02:32
Work done on charge in uniform electric field (for HL)
01:13
Change in electric potential energy (for HL)
02:19
Charge to mass ratio of different charges
02:22
Charge in equilibrium in electric field
03:10
Coulomb’s law (change in force when distance is increased)
01:31
A charge is thrown in electric field
01:41
Electric field strength as a potential gradient (for HL)
03:14
Find equivalent Electric potential due to four charges (for HL)
03:57
Derive velocity using Coulomb’s force between electron and nucleus
01:45
Trajectory of electron in electric field
02:32
Work done on charge & Equipotential surface (for HL)
02:40
Identify correct pattern of electric field
01:42
Gradient of Potential – distance graph (for HL)
03:59
D.3 Motion in electromagnetic fields
0/20
Magnetic force exerted on wire when it is rotated in a plane
03:27
Electric and magnetic field applied in a region and charge is placed
03:39
Magnetic Force vs time graph when current carrying coil is placed in mag field
04:27
Effect on radius of current carrying coil placed in magnetic field
03:09
A charge is placed in solenoid where magnetic field is uniform
02:42
Magnetic force exerted on electron due to field produced by current wire
02:04
Magnetic force behaving as a centripetal force
03:19
Magnetic field pattern when two current carrying wires are placed parallel
02:00
Visualization of magnetic force exerted on current carrying wire by external field
02:15
Determining direction of magnetic force on an electron in magnetic field
02:47
Mutual force between two current carrying wires
03:11
Force on current carrying wire by Earth’s mag field
02:00
Calculate amount of current when wire placed in mag field
02:37
Speed at which charge go undeflected (velocity selector)
03:29
Reason why magnetic force exert in specific direction
02:45
Determine direction of magnetic force
02:44
In which direction charge will deflect?
02:22
Find direction of resultant magnetic field due to two current wires
04:25
Magnetic force behaving as a centripetal force
03:00
Find direction of resultant magnetic field due to two wires
03:08
D.4 Induction (for HL)
0/13
Draw induced emf – time graph from flux-time graph
03:23
Find speed of conducting bar (motional emf problem)
02:58
Calculate induced emf using Faraday’s law
03:24
Lenz’s law & law of conservation of energy
02:50
Draw induced current – time graph
03:29
Identify correct Induced emf – time graph
02:58
Emf & flux-time graph
01:50
Determine direction of current using Lenz’s law
03:07
In what direction current is induced when placed closed to another coil
03:58
Draw Induced emf vs time graph
04:02
How the field & emf in induced by one coil by other attched with battery
04:54
EMF-time graph when rectangular coil is passed through magnetic field
03:37
Find induced emf when a coil is rotated by 180 degrees
04:11
Unit D Fields
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