General Physics 2 Flashcards
A branch of physics that deals with the electromagnetic force that occurs between electrically charged particles.
Electromagnetism
One of the fundamental forces of nature which acts upon all charged particles
Electromagnetic Force
Acts between all charged particles, whether or not they’re moving.
Electric Force
Attraction or repulsion that arises between electrically charged particles because of their motion.
Magnetic Force
It is the study of phenomena due to charges that are temporarily stationary
Electrostatic
The physical quantity which is carried by some elementary particle that governs how the particles are affected by an electric or magnetic field
Electric Charge
If the sum of the identical positive and negative quantities is zero
Electrically Neutral
Electrons transfer from a neutral object to another via rubbing due to the difference in the objects’ capacity
Friction
Transfer of electrons from charged to neutral object via direct contact
Conduction
A scientific device that is used to detect the presence of an electric charged on a body
Electroscope
Electrons react to the electric field of another object without direct contact
Induction
A charged caused by an indirect contact with a charged object or material
Induced charge
Provides a measure of safety against electric shocks by acting a safety line
Grounding
States that the electrical force between two charged objects is directly proportional to the product of the quantity of charge
Coulomb’s Law
F - is the electrostatic force
q1 and q2 are point charges (+) and (-)
r is the distance between the point charges
k - the constant valued at
(8.99×10⁹Nm²/C²)
A region of space around a charged particle, or between two voltages
(Michael Faraday)
Electric Field
E - the electric field strength
F - electrostatic force
q - point charge
r - distance between point charge
k - 8.99×10⁹ Nm²/C²
A property of an electric field that may be thought of as the number of electric lines of force that intersect a given area
Electric Flux
States that the outward normal electric flux through any closed surface is proportional to the total electric charge enclosed within that closed surface
Gauss’ Law
∅ - electric flux
Q - enclosed charged
E - electric field strength
A - area of the surface
∅ - the angle
E⁰ - 8.85×10^-12 C²/Nm²
The amount of work needed to move a unit charge from a reference to a specific point
Electric Potential
Units to remember
V - j/c
q or Q - c (coulomb’s)
F - N (newton)
r - m (distance)
k - Nm²/C²
coulomb’s constant (k) (8.99×10⁹ Nm²/C²)
E⁰ (8.85×10^-12 C²/Nm²)
q or Q (charge) 1.602×10^-19 C
electric potential constant(k)
9.0×10⁹ Nm²/C²
