Attaching Meters

Learning-Connections Clipart

Ammeter - Measures Current

Voltmeter - Measures Voltage (Potential Difference)

(= Energy Change/Coulomb)

Find Ammeter, Voltmeter

Voltmeters
are connected 'in parallel'

Ammeters
are connected 'in series'

Which circuit is correct?

June 2006

Circuit Challenge

a) I₁ = ?

I_T = I₁ + I₂

10.0 A = I₁ + 4.0 A

I₁= 6.0 A

b) V_T = ?

V_T = V₁ = V₂

V₂= IR

= 4.0 A (30. ohms)

V₂= 120 V

So,

V_T= 120 V

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