Show:
Capacitor
Magnetic Fields and Induced
Inductors
Potential Energy
Equations
100
An electrical device that stores energy in an electric field.
What is Metal plates?
100
Electric fields can be measured using the force exerted on a test charge placed in the field
What is magnetic field?
100
An electrical device that stores energy in a magnetic field.
What is a solenoid or coil?
100
The energy stored in an inductor equal the work done during a slow build up current.
What is Potential Energy in Inductors?
100
Capacitor: equation equals
What is deltaVf +deltaVi=deltaVf+0=1/2deltaVf _____________ ________ 2 2
200
Every Capacitor contains two of theses separated by an insulator.
What is conductors?
200
Two parallel wires carrying currents create magnetic fields and forces.
What is Attraction and Repulsion?
200
The SI and English unit of inductance.
What is henry (H)?
200
The PE in a capacitor equals the work done in establishing the electric field.
What is Potential Energy in Capacitors?
200
We can calculate work by the product of the potential difference and charge moved q.
What is W=q delta V average = q(1/2 delta V f)= 1/2 q delta V
300
We can calculate work by the product of the potential difference and charge moved.
What is q
300
A magnetic field can also produce an electric field.
What is Electromagnetic induction?
300
The same as 1 volt per ampere per second.
What is 1 henry
300
Free Points
What is happyness
300
we can use the definition of capacitance to write another form for this equation.
What is 2 PE=1/2C delta V
400
the SI and English unit of capacitance.
What is farad (F)
400
Using a larger magnet Coil with a larger diameter Coil with more turns of the wire Moving the magnet faster
How can you increase the induced EMF.
400
must be done to push electrons through the induced EMF.
What is work?
400
The amount of energy not in used by a EMF.
What is Potential Energy in an EMF?
400
I average = I f +I i = I + 0 = 1/2I ______ _____ 2 2
What is the equation on Inductors?
500
Metal plates, Ceramic, and Power films
What are types of Capacitors?
500
potential difference, or voltage, needed to make electric charges flow through a wire.
What is Electromotive Force (EMF)
500
permanent magnet, a coil, and the Earth are caused by curet loops.
What is magnetic fields?
500
The amount of energy not in use.
What is Potential Energy?
500
Potential energy stored in an inductor = 1/2(inductance) 2 (current)
What is 2 PE = 1/2LI