Electric force, field and potential
Capacitors
Magnetism
Oscillations and Waves
100
The unit for this is Newton/Coulomb.
What is an electric field?
100
Another unit for this is Coulombs/Volt
What is Farad?
100
q\vec v\times \vecB
What is the force on a charged particle in a magnetic field?
100
With this wave number k (in multiples of pi), we get this plot for a snapshot of a wave.
What is
{2pi}/4 = pi/2
200
Another unit for this is Joule/Coulomb
What is Volt?
200
This happens to the capacitance when you connect two capacitors in series
What is decrease in capacitance (and increase in working voltage)?
200
This is the torque experienced by a current loop in a magnetic field
What is
\vec \mu \times \vec B
200
One second later, the wave traveled to the right in +x direction as shown in green. This is the period of the oscillations.
What is 4 seconds?
300
This is the minimum number of charges to fill the space with electric field.
What is one?
300
This is the major difference between a capacitor and a battery.
What is the voltage drops as the capacitor looses charges while the battery's voltage is constant?
300
This is the definition of a magnetic dipole moment of a current loop.
What is
I\vec A?
300
This is the speed of this wave travelling in the +x direction.
What is 1 m/s?
400
This is the property of electric field that when ignored, you will get the wrong net electric field by adding the magnitudes from a set of given charges.
What is a "vector"?
400
The capacitance for a parallel plate capacitor
What is
C=epsilon_0A/d
400
The answer is
\mu_0 I_{enclosed}
What is
\oint \vec B\cdotd\vec l?
400
What is the speed of this wave if it were travelling in the -x direction?
What is 3 m/s?
500
The answer is
-int_a^b \vecE\cdotd\vecr
What is the potential gained going from point a to b in an electric field?
500
Another unit for this is Ohms*Farad
What is seconds?
500
This is the definition of magnetic flux through a current loop.
What is
\vec B \cdot \vec A
where A is the area of the current loop.
500
This is the reason why these equations you know and love do *not* work for oscillations:
v_f =v_i +at
x_f =x_i +vt+1/2at^2
What is "acceleration is not constant in time in oscillations"?