This lesson includes 15 additional questions for subscribers.
Lesson Worksheet: Electric Current Physics • 9th Grade
In this worksheet, we will practice using the formula I = Q/t to calculate the current through a point in simple circuits given the charge moving past that point in a given time.
Which of the following is the correct unit for electric charge?
Which of the following is the correct unit for electric current?
A rechargeable battery is left to charge for a period of time. It is charged with a current of 10 mA. After it has finished, the battery has gained 180 C of charge. For how many hours was the battery left to charge?
Which of the following is the correct formula for the current through a point in a circuit? represents the current, represents the amount of charge, and represents time.
How many milliamperes are there in 1 ampere?