Attaching Meters

 

Ammeter - Measure Current

 

Voltmeter - Measures Voltage (Potential Difference)

= Energy Change/Coulomb

 

 

 

 

 Find Ammeter, Voltmeter
 
 
 

 

 

Voltmeters
are connect 'in parallel'

 

Ammeters
are connected 'in series' 

 

 

Which circuit is correct?

 

 

June 2006 

 

 

 

Attaching Meters - St. Mary's H.S.


Circuit Challenge

(Jan. 2001)

a) I1 = ?

IT = I1 + I2

 

 

10.0 A =   I1 + 4.0 A

 

I1 = 6.0 A

b) VT = ?

 

VT = V1 = V2

 

V2 = IR

= 4.0 A (30. ohms)

 

V2 = 120 V

So,

 

 

VT = 120 V