Phet electricity & magnetism lr lab

File Attached

 

 

AP-C

Electricity & Magnetism
Induction

LR Lab

Name ____________________

Teacher __________________

Period  _____

 

 

Purpose 

 

 

 

 

 

 

 

 

 

Materials  computer and internet

 

                  http://phet.colorado.edu/new/simulations/sims.php?sim=Circuit_Construction_Kit_ACDC

 

 

 

Background  Tipler Chapter 30-8

 

Text Box:                                                http://hyperphysics.phy-astr.gsu.edu/hbase/electric/induct.html#c1

 

 

 

Directions

 

  1. Construct the circuit shown to the right.

  2. What is the unit of the quotient of inductance and resistance?  Show your work below.

     

     

  3. The quotient of L and R is called the time constant.  Adjust the time constant of the circuit to one second.  Record the value of inductor and bulb’s resistance.

  4. Text Box: time =An inductor will be fully charged/discharged in a time of 4 to 5 L/R.  How long will it take your LR combination to fully charge or discharge? 

  5. Add the necessary meters and sketch the graphs of i vs t, and VResistor vs t, on the graphs below when the inductor is charging and discharging. 

     

 

Inductor is Charging

 

Inductor is Discharging

Current vs. Time

 

Current vs. Time

 

VResistor vs. Time

 

VResistor vs. Time

 

 

  1. Add the necessary meters and sketch the graphs of i vs t, and VInductor vs t, on the graphs below when the inductor is charging and discharging. 

     

 

Inductor is Charging

 

Inductor is Discharging

Current vs. Time

 

Current vs. Time

 

VInductor vs. Time

 

VInductor vs. Time

 

 

 

 

  1. When is the brightness of the bulb increasing?

     

     

     

     

     

  2. When is the brightness of the bulb decreasing?

     

     

     

     

     

  3. When does the battery supply the potential to light the bulb?

     

     

     

     

     

  4. When does the inductor supply the potential to light the bulb?

     

     

     

     

     

  5. Does the direction of charge flow change through the inductor?  If yes, explain when.

     

     

 

Need your ASSIGNMENT done? Use our paper writing service to score better and meet your deadline.


Click Here to Make an Order Click Here to Hire a Writer