Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
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

AC Fundementals

Study aid for Apprentice Electricians

QuestionAnswer
The % of change in one time constant. 63.2%
Self induced voltage will always oppose the applied voltage by_____degrees. 180
Inductance is measured in? Henries (H)
Capacitance is measured in? Farads (F)
One cycle has how many alterations? Two (2)
Higher frequency on a given value capacitor will cause current to? Increase
The amount of charge on the plates of a capacitor is a function of? Current and Time
The formula for finding a RMS value is? Emax or Imax times sine(45)
In a capacitor, the electric energy is stored in a(n)___________ Field. Electrostatic
What is an example of a variable capacitor? A radio tuner
In an inductor, electric energy is stored in a(n)____________ field? Electromagnetic
Mica, paper and electrolytic are three types of: Capacitors
The effective value of AC is based on the heating effect of the equivalent DC. True
When current and voltage peak in the same direction at the same time it is called: In Phase
The inductance symbol is L
The total opposition to current in an AC circuit is; Impedance
Inductance opposes a change in: Current
Volts per millimeter is used to measure: Dielectric Strength
Created by: ScottLetwin