Magnetism
property of a material that describes its ability to exert a force on a magnet or a magnetic material.
magnetic
What is electricity?
flow of electric current through a conductor, such as a wire. Electricity is sometimes also used to describe electrostatic charges.
continuous flow of electrons
electric current
electromagnet is
when electricity and magnetism meets
solenoid
coil of wire, usually cylindrical, that uses electric current to create a magnetic field.
when two magnet pull towards each other
attract
A law to mathematically describe the relationship between current, resistance, and voltage of electrical circuits.
What is Ohm's Law
closed pathway that an electrical current follows
circuit
poles are
the strongest part of the magnet
What is the minimum number of poles for a magnet?
What is 2?
two regions in a magnetic field
magnetic poles
explain detailed the Kirchhoff’s voltage law
sum of the voltage drops (voltage differences) around a closed loop equals zero.
types of circuit
parallel, series circuit
static energy is
the build up of electric charges on an object
Find the current of a transformer connected to 120 V with a resistance of 480 Ω.
What is 0.25A
A circuit in which parts are connected so that the electric Current passes along more than one pathway.
What is Parallel Circuit
Kirchhoff’s current law says
sum of all currents entering a junction must equal the sum of all currents exiting that junction.
supplies used to make circuit
batteries, wires lightbulb
how are current and voltage related
directly
electric motor
machine that transforms or converts electrical energy into mechanical energy.
vector arrows that depict visually the direction and magnitude of an electric field
electric field lines
the units of electrical current and resistance
ampere,ohm,
static and current
examples of electricity
the flow of electrons along a complete closed path
current electricity
polarity
condition of a system that describes opposing physical characteristics. Examples include the poles of a magnet and electrical charges.