The “Live Action” Physics Review Game

Topic: Circuits

In a simple electric circuit, a 24-ohm resistor is

connected across a 6.0-volt battery. What is the

current in the circuit?

(1) 1.0 A (3) 140 A(2) 0.25 A (4) 4.0 A

The electrical resistance of a metallic conductoris inversely proportional

to its

(1) temperature (3) cross-sectional area (2) length (4) resistivity

An operating 100.-watt lamp is

connected to a120-volt outlet. What is the total electrical

energyused by the lamp in

60. seconds?(1) 0.60 J (3) 6.0 × 103 J(2) 1.7 J (4) 7.2 × 103 J

A 3.0-ohm resistor and a 6.0-ohm resistor areconnected in series in an operating electriccircuit. If the current through the 3.0-ohmresistor is 4.0 amperes, what is the potentialdifference across the 6.0-ohm resistor?

(1) 8.0 V (3) 12 V(2) 2.0 V (4) 24 V

In which circuit would current flow through resistor R1, but not through resistor R2 while switch S is open?

A 5.0-ohm resistor, a 10.0-ohm resistor, and a 15.0-ohm resistor are connected in

parallel with a battery. The current through the 5.0-ohm resistor is 2.4 amperes.

Calculate the amount of electrical energy expended in the 5.0-ohm resistor in 2.0 minutes. [Show all work,including the equation and substitution with units.]

A 50.-ohm resistor, an unknown resistor R, a 120-volt source, and

an ammeter are connected in a

complete circuit. The ammeter reads 0.50

ampere.Calculate the equivalent resistance of the circuit. [Show all work, including the equation and substitution with units.]

Determine the resistance of resistor R.

Calculate the power dissipated by the 50.-ohm resistor. [Show all work, includingthe equation and substitution with units.]

In the space in your answer booklet, draw adiagram of an operating circuit that

includes:

• a battery as a source of potential difference• two resistors in parallel with each other• an ammeter that reads the total current in thecircuit

A 15-ohm resistor, R1, and a 30.-ohm resistor, R2, are to be connected in parallel

between points A and B in a circuit containing a 90.-volt battery.

Complete the diagram in your answer booklet to show the two resistors connected in parallel

betweenpoints A and B.