Physics Spring Final Review

Three resistors with values of 4.0 Ω, 6.0 Ω and 8.0 Ω respectively, are connected in series. What is their equivalent resistance?

• 18
• 8.0
• 6.0
• 1.8

Three resistors with values of R₁, R₂ and R₃ are connected in series.
 
Which of the following expresses the total resistance, R₁, of the three resistors?

• R_t = R₁ + R₂ + R₃
• R_t = 1/R₁ + 1/R₂ + 1/R₃
• R_t = R₁ = R₂ = R₃
• R_t = (1/R₁ + 1/R₂ + 1/R₃

Three resistors with values of 4.0 Ω, 6.0 Ω and 10.0 Ω are connected in parallel. What is their equivalent resistance?

• 20.0 Ω
• 7.3 Ω
• 6.0 Ω
• 1.9 Ω

A car dashboard panel bulb has a resistance of 33 Ω when it is placed across a 12 V battery. What is the current through the circuit?
V=IR

• 0.36 A
• 2.8 A
• 3.96 A
• 396 A

If a resistor is added to a parallel circuit, the total resistance:

• increases.
• decreases.
• remains the same.
• becomes zero.

Identify the following as characteristics of either a series circuit or a parallel circuit:

When one light bulb burns out, the rest stay lit.

• Series circuit

• Parallel circuit

Identify the following as characteristics of either a series circuit or a parallel circuit:

When one light bulb burns out, they all go out.

• Series circuit
• Parallel circuit

This is an example of a _______ circuit

• open
• series
• parallel
• square

This is an example of a ______ circuit

• Series
• Parallel
• Open
• Dihexihedral

The job of a battery in a circuit is to...

• move the charges
• charge the charges
• make the charges
• electrify the charges