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Select Lessons (39)
Dynamics: Newton’s Laws of Motion
ELECTRICITY: Current
ELECTRICITY: Current
ELECTRICITY: Resistance
Elasticity
Electric fields
Electromagnetism
Electromagnetism
Energy: Application And Uses
Experimental physics
Forces
Gravitational fields
Heat
Kinematics in Two Dimensions: Vectors, projectiles
Kinematics in one dimension
Linear Momentum
MOTION
MOTION
MOTION
MOTION
MOTION
MOTION: Circular
MOTION: Collision
MOTION: Inclined plane
MOTION: Simple harmonic motion (SHM)
Magnetism
Optics
PLASTICS
PRESSURE
Radioactivity
TEMPERATURE
The Laws of Thermodynamics
Units System
Units System
Units, dimensions and homogeneity
WAVES: Electromagnetic
WAVES: Electromagnetic
WAVES: Sound
5/30 MCQs for:
Magnetism
A charged particle moves across a constant magnetic field. The magnetic force on this particle:
Causes the particle to accelerate.
Is in the direction of the particle's motion.
Changes the particle's speed causing the particle to accelerate.
Changes the particle's speed.
The magnetic field produced by a long straight current-carrying wire is:
Proportional to the current in the wire and inversely proportional to the distance from the wire.
Inversely proportional to both the current in the wire and the distance from the wire.
Inversely proportional to the current in the wire and proportional to the distance from the wire.
Proportional to both the current in the wire and the distance from the wire.
An electric current produces:
An electromagnetic field.
A gravitational field.
A magnetic field.
An electric field.
1 T is equivalent to:
1 Nm/A.
1 NA/m.
N/Am.
Vm/A.
An electron moving along the +x axis enters a region where there is a uniform magnetic field in the +y direction. What is the direction of the magnetic force on the electron? (+x to right, +y up, and +z out of the page.)
-y direction.
-x direction.
-z direction.
+z direction.
