Current and Voltage

This is the rate that charge flows (I = q/t)

• voltage

• current

• resistance

• laminar flow vector

What are two possible units for current?

• volt

• amp

• coulomb per second

• ohm

The amount of current flowing in a circuit depends on:

• the voltage across the circuit

• the amount of resistance in the circuit

• the number of closed switches in the circuit

• the size of the wire in the circuit

Voltage is

• the speed of electrons coming out of a battery

• the energy a charge has coming out of a battery

• the total energy of all the charges in a battery

• the length of time a battery will last

Two possible units for voltage are

• amps

• volts

• joules

• joules per coulomb

The voltage of the cell (A) is

• greater than the voltage across bulb C

• less than the voltage across bulb C

• the same as the voltage across bulb C

Bulbs C and D are identical. Which of the following is true?

• the voltage across each bulb is identical

• the voltage across C is greater than the voltage across D

• the voltage across D is greater than the voltage across C

Compared to the voltage of the battery, the voltage of bulb C is

• greater than the battery

• less than the battery

• same as the battery

Bulb C and D are identical. Compared to the voltage of D, the voltage of bulb C is

• greater than bulb D

• less than bulb D

• same as bulb D

Compared to the current through the battery, the current through bulb C is

• greater

• less

• same