Current Pop Quiz

A total charge of 100. coulombs flows past a fixed point in a circuit every 500. seconds. What is the current at this point in the circuit?

• 0.200 A

• 5.00 A

• 5.00 x 10⁴ A

• 1.25 x 10¹⁵ A

A net charge of 5.0 coulombs passes a point on a conductor in 0.050 second. The average current is

• 8.0 × 10^-8 A

• 1.0 × 10^-2 A

• 2.5 × 10^-1 A

• 1.0 × 10² A

An MP3 player draws a current of 0.120 ampere from a 3.00-volt battery. What is the total charge that passes through the player in 900. seconds?

• 324 C

• 108 C

• 5.40 C

• 1.80 C

The current in a wire is 4.0 amperes. The time required for 2.5 × 10¹⁹ electrons to pass a certain point in the wire is

• 0.25 s

• 0.50 s

• 4.0 s

• 1.0 s

The current through a light bulb is 2.0 amperes. How many coulombs of electric charge pass through the light bulb in one minute?

• 60. C

• 2.0 C

• 120 C

• 240 C