measuring moving charges
Download
Skip this Video
Download Presentation
Measuring moving charges

Loading in 2 Seconds...

play fullscreen
1 / 7

Measuring moving charges - PowerPoint PPT Presentation


  • 87 Views
  • Uploaded on

Measuring moving charges. Voltmeter. Measures potential difference (voltage), the energy of each charge Connects to either side of a load. Ammeter. Measures current, how many charges move past a point in a given time. Connected into a circuit between two parts. Ohm’s Law.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Measuring moving charges' - maili


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
voltmeter
Voltmeter
  • Measures potential difference (voltage), the energy of each charge
  • Connects to either side of a load
ammeter
Ammeter
  • Measures current, how many charges move past a point in a given time.
  • Connected into a circuit between two parts
ohm s law
Ohm’s Law
  • George Ohm discovered a relationship between voltage and current.
  • If you increase the voltage to a load, current will increase
  • If you keep same voltage but increase the load, current will decrease
ohm s law1
Ohm’s Law
  • The equation for this relationship is:

V = IR

Where:

V - voltage (measured in volts, V)

I - current (measured in amps, A)

R - resistance (measured in ohms, Ω)

solving science problems involving equations
Solving Science Problems Involving Equations
  • Given : record all given quantities
  • Unknown : identify what value you are looking for.
  • Equation : write the equation you are going to use.
  • Solution : Substitute values into the equation and calculate the answer (include the correct units).
  • Statement : write an answer statement in sentence form.
example
Example:
  • The current required to operate an electric can opener is 1.5A. What is the resistance of the can opener if the voltage supplied is 120V?

Given:Equation:Solution :

Unknown:

Statement :

120 V = R

1.5 A

V=120V

V=IR

I=1.5A

V=IR

I I

80Ω= R

R=?

V=R

I

Therefore the resistance of the can opener is 80 Ω.

ad