10-C  Potential Difference and Current for a Resistor                      pp340-341

Date:_________________

 

Purpose:  To determine the relationship between the potential difference across a resistor and the electric current flowing through it.

 

*Using ammeter, begin with wire attached to 5A.   Change meter to 500mA setting if needle will read below 0.5A however, all readings MUST be recorded in AMPS, thus 500mA = o.5 A, 340mA = 0.34 A, etc. 

 

Results:

Potential Difference

V (v)

Electric Current

I (A)

470 Ω

680 Ω

0

 

 

1.5

 

 

3

 

 

4.5

 

 

5

 

 

6

 

 

 

Analyze #1-3

 

Conclude & Apply #4-8

 

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