Save
Busy. Please wait.
Log in with Clever
or

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever
or

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

PH - Circuits

Physics: DC and AC Circuits - KAPLAN/MCAT in a box

QuestionAnswer
Permittivity of Free Space, ε0 A term denoted by ε0 used in the calculation of capacitance, give by the equation C = ε0 A/d, where A is the area of one plate and d is the distance between the plates.
Node The point of zero displacement in a standing wave
Longitudinal Wave Type of wave, such as sound, whose oscillation is along the direction of it's motion
Dieletric Constant A dimensionless number that indicates the factor by which capacitance is increased when a dielectric is placed in between the plates of a capacitor, given by C' = KC, where C' is the new capacitance.
Direct Current Current that flows through a conductor in one direction only.
Electric Circuit A conducting pathway that contains one or more voltage sources that drive an electric current along that pathway and through connected passive circuit elements (such as resistors).
Electromotive Force The energy gained by an electron when it is accelerated through a potential difference of 1 volt, given by qV where q is 1.6 x 10^-19 C and V is 1 volt.
Electron Volt The voltage created by a potential difference between the two terminals of a cell when no current is flowing.
Insulator A material in which electrons canot move freely.
Kirchhoff's Laws (A) A) In accordance with the conservation of electric charge, the sum of currents directed into a node or junction point in a circuit equals the sum of the current directed away from that point.
Kirchhoff's Laws (B) B) The sum of the voltage sources in a circuit loop is equal to the sum of voltage drops along that loop.
Ohm' Law Law stating that the voltage drop across a resistor is proportional to the current flowing through it, given by the equation V = I R.
Resistivity Intrinsic property of a conductor denoted by R = ρ L/A, where L is the length of the conductor and A is its cross-sectional area.
RMS Current A quantity used to calculate the average power dissipated in an AC circuit, given by I[max] = √2. This equation must be used because the average current, when calculated by conventional means, equals 0 as a result of the periodic nature of that current.
RMS Voltage V[max] = √2; the average voltage in an AC circuit, where the voltage alternates in a sinusoidal pattern.
Amplitude The point of maximum displacement from the equilibrium position.
Conductor A material in which electrons can move with relative ease.
Dielectric An insulating material placed between the two plates of a capacitor. If the circuit is plugged into a current source, more charge will be stored in the capacitor. If not plugged into a current source, the voltage of the capacitor will decrease.
Power Dissipated by Resistor The rate at which the energy of flowing charges through a resistor is dissipated, given by the equation P = I V.
Resistance The natural tendency of a conductor to block current flow to a certain extent resulting in loss of energy or potential. Resistance is equal to the ratio of the voltage applied to the resulting current.
Created by: miibo
Popular MCAT sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards