Chapter 5: Ohm’s Law
MULTIPLE CHOICE
1. In an electric circuit, the ____ consists of some type of resistance to current flow.
a.
load
c.
conductor
b.
voltage source
d.
battery
2. In an electric circuit, the ____ establishes a difference of potential that forces the current to flow.
a.
load
c.
conductor
b.
voltage source
d.
pump
3. The relationship of voltage, current, and resistance is called ____.
a.
Ohm’s law
c.
Kirchhoff’s second law
b.
Kirchhoff’s first law
d.
Kirchhoff’s third law
4. If the resistance in an electric circuit is increased, the current _____.
a.
increases
c.
stays the same
b.
decreases
d.
cannot be determined
5. Ohm’s law states that the current in a circuit (series, parallel, or series-parallel) is directly proportional
to the ____ and inversely proportional to the ____.
a.
voltage; resistance
c.
conductance; resistance
b.
resistance; voltage
d.
resistance; conductance
6. In a ____ circuit, the current flow is the same throughout the circuit.
a.
series
c.
series-parallel
b.
parallel
d.
resistive
7. In a ____ circuit, the current divides among the branches of the circuit and recombines on returning to
the voltage source.
a.
series
c.
series-parallel
b.
parallel
d.
resistive
8. The total voltage in a ____ circuit is equal to the voltage drop across the individual loads (resistance)
in the circuit.
a.
series
c.
series-parallel
b.
parallel
d.
resistive
9. The total resistance in a ____ circuit is equal to the sum of the individual resistances in the circuit.
a.
series
c.
series-parallel
b.
parallel
d.
resistive
10. In a parallel circuit, the same ____ is applied to each branch in the circuit.
a.
voltage
c.
conductance
b.
resistance
d.
current flow
COMPLETION
1. A(n) ____________________ circuit supports current flow.
2. A(n) ____________________ circuit does not support current flow.
3. A(n) ____________________ is defined as any point of a circuit at which two or more current paths
meet.
SHORT ANSWER
1. State Kirchhoff’s current law.
2. State Kirchhoff’s voltage law.