Which of the following is the correct formula for the amount of charge flowing through a point in a circuit in a given time? represents the amount of charge, represents the current, and represents time.

The diagram shows a circuit consisting of a battery and a resistor. The current through the circuit is 50 mA. Over a period of 1.5 hours, how much charge flows past point P in the circuit?

A laptop charger passes a current of 5.0 A through a laptop battery. Over a period of time, 45‎ ‎000 C of charge is transferred to the battery. For how many hours was the laptop left to charge?

The diagram shows a circuit consisting of a battery and a light-emitting diode (LED). Over a period of 25 seconds, a charge of 50 coulombs passes through point in the circuit. What is the current in the circuit during this period?

The diagram shows a circuit consisting of a battery and a resistor. The current through the circuit is 2.0 A. Over a period of 45 seconds, how much charge flows past point P in the circuit?

How many milliamperes are there in 1 ampere?

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.

If a filament of a light bulb experiences a current of 0.3 A, the electric charge that will flow through a point P in the filament in 25 s will be .

If a standard type of LED light bulb operates at a 20 mA electric current, what time will it take electrons to flow past a point in the bulb filament? Use the charge of electron C.

A television works at an electric current of 0.5 A. If the television is turned on for 1.5 hours, then the electric charge that passes through it is C.

If an electric device that works at a 0.05 A electric current draws 4.25 C of charge, then the time taken by the charge to flow is s.

If an electric current of intensity 50 mA is applied on a circuit, then the electric charge that will flow past any point in the circuit in 1 minute is .

If a certain type of electric bulb can withstand a maximum of electrons flowing through its filament in a minute, then the maximum current this light bulb can withstand is   A. Use the charge of electron C.

The graph below shows the relation between the electric charges flowing in a conductor and the time this takes. The current in this conductor is  A.

If a stereo that works at a current of 5 A drained a battery of 12‎ ‎000 C, then the stereo worked for minutes.

If an electric current of intensity 3 A passes through a conductor, how much time is needed for an 18 C charge to pass a point P in the conductor?

A circuit has a current of 0.5 mA. If the current is turned on for 1.6 min, then the electric charge flowing in the circuit is mC.

A torch works at a current of 150 mA. If 1.95 C of charge is passed through the torch filament, the torch will run for .

If a light bulb can withstand a maximum current of 3 A, how many electrons pass by a point in the filament of the bulb in each second? Take C to be the charge of an electron. Give your answer in scientific notation to two decimal places.

If an electric charge of 45 C passes by a point P in a conductor in 20 s, then the intensity of electric current in that conductor is .

If the rate of charge flowing past a point in a conductor is 7.2 coulombs per minute, then the current intensity in this conductor is mA.

If 21 C of electric charge flows past a point in a circuit for 2.5 minutes, then the electric current intensity, in milliamperes, is  mA.