Scientist
Showed lightning is electricity and thought current was positive charge
Who is Ben Franklin?
Like charges (repel or attract)
What is repel?
The charge on 6.25 billion billion electrons or protons.
What is a coulomb?
The direction of a magnetic field line is always the direction THIS MONOPOLE would move.
What is A NORTH MONOPOLE? Thus away from the north pole and toward the south pole.
If you doubled the charge on one object and tripled the charge on the other but kept the distance between the objects the same, the force between them would...
What is "Be SIX times as much"?
The unit of charge is named after him, and he discovered the law that measures the force between two charged objects knowing the charge on each object and the distance between the objects.
Who is Coulomb?
When charge is transferred from one object to another, this is what is actually transferred.
What is electrons?
A Volt is equal to
What is a Joule per Coulomb? Also Weber per second
The magnetic force on a 1 meter long conductor carrying a current of .2 A in a .6 Tesla field
What is BIL = .12 N
If you quartered the distance between two charged objects but kept their charges the same, the force between them would...
What is BE SIXTEEN TIMES AS MUCH?
Discovered that there is a relationship between electricity and magnetism by laying a wire parallel to a compass needle
Who is Oersted?
A force of 40 N acts on a charge of 0.25 C in a region of space. The electric field at the point of the charge is
160 N
The unit used for electric pressure also known as electric potential.
What is a Volt?
The way one can tell where the strongest magnetic or electrostatic field is in a field diagram...
What is "Where the densest fields lines are" (or where there exist the most field lines in a uniform square region)
If you changed two magnets so as to double the magnetism on the first but replaced the second magnetic with one eight times as strong BUT held the magnets FOUR times further apart, the magnetic force between them would...
What is THE FORCE BETWEEN THEM WOULD NOT CHANGED? (because 2X8/4^2 = 16/16=1)
Who is Faraday?
The charged left on a neutral object by conduction compared to the charged rod touching the neutral object.
What is the SAME charge as the charged rod?
The unit used for electric current. It takes less than .25 of these through your heart to kill you.
What is an Ampere?
If the magnetic flux influencing a surface of area 5 meters squared is 2.5 Webers, then the magnetic induction is
.5 Webers/m2
If you move a crossbar on a conducting loop (that sits perpendicular to a magnetic field) so that the flux increases from 3 Webers to 5 Webers in 2 seconds, the induced emf is
1 Volt
Independently also discovered electromagnetic induction
Who is Henry?
The charge left on a neutral object compared to the charged object when charged by induction. (same or opposite)
What is The Opposite Charge as the charged object has.
The units of magnetic induction
What is a Tesla, Newton per Amp- meter, Weber per meter squared
If a magnet moving through a coil increases in speed, then the current induced will
What is increase
If you move a 2 meter conducting wire which is part of a conducting loop through a magnetic field of .2 Tesla at velocity 3 m/s then you induce an emf of
1.2 Volts