WorksheetsBASIC ELECTRIC CIRCUIT & DIRECT CURRENT PART 2
Total questions: 5
Worksheet time: 3mins
Which physical principle is the basis for Kirchhoff's Second Rule (Loop Rule)?
Conservation of momentum
Conservation of mass
Conservation of energy
Conservation of charge
Using the sign convention for the Loop Rule ΣV = 0, how is the potential change recorded when moving through a resistor in the same direction as the current, I?
+IR
-IR
-ε
+ε
An electrical appliance is rated at 80 W. What does this label specifically mean?
The rate of change of voltage is 80 V
The rate of change of power is 80 W
The rate of change of current is 80 A
The rate of change of energy is 80 J s−1
A potential divider consists of resistors R1=8000 Ω and R2=4000 Ω connected in series to a 12 V source. Calculate the output voltage Vout across R2.
8 V
4 V
2.4 V
12 V
In a potentiometer experiment to compare two cells, a standard cell of
ε1 = 1.12 V balances at l1 = 56 cm. If an unknown cell ε2 balances at l2 = 80 cm, determine its emf.
1.60 V
1.12 V
1.40 V
0.78 V
