Coulomb's Law
This force acts between charged objects.
Electric field direction is defined as the direction this type of charge would move.
What is a positive test charge?
A current-carrying wire produces this around it.
What is a magnetic field?
The unit of electric current
What is ampere?
The unit of electric force.
What is Newton?
If the distance between two charges doubles, the force changes by this factor.
What is one-fourth?
The equation for electric field due to a point charge.
What is E = kq/r^2?
The right-hand rule helps determine this.
What is direction of magnetic field/current force?
The equation relating voltage, current, and resistance
What is V = IR?
The unit of electric field
What is N/C?
Write the equation used to calculate electric force between two point charges.
What is F = k(q1q2)/r^2?
Electric field strength increases when distance from the charge does this.
What is decreases?
Increasing current will cause magnetic field strength to
What is increase?
In a series circuit, current is this throughout.
What is the same?
The constant k in Coulomb's Law
What is 8.99 x 10^9 Nm^2/C^2?
Two positive charges interact. The force between them is:
What is repulsive?
Field lines around a negative charge point.
What is inward?
A changing magnetic field can induce this.
What is electric current?
In a parallel circuit, voltage is this across branches.
What is the same?
If distance is tripled, forces changes by this factor.
What is 1/9?
Two charges of 3x10^-6 C and 2x10^-6 C are separated by 0.5m. Calculate the force.
What is 0.22 N?
A point charge +Q is placed at the center of a hollow conducting spherical shell. The electric field anywhere inside the shell (not at the center)
What is zero?
This law describes induced emf from changing magnetic flux.
What is Faraday's Law?
If resistance increases and voltage stays constant, this is what current does.
What is decrease?
Coulomb's law follows an inverse-square relationship because of this.