Electricity Charge and Static Calculations (Q1)

What is the unit of electric current?

• Volt (V)

• Ampere (A)

• Coulomb (C)

• Ohm (Ω)

Which formula correctly relates charge (Q), current (I), and time (t)?

• Q = I / t

• Q = I * t

• Q = t / I

• Q = 1 / (I * t)

A current of 3 amperes flows through a wire for 5 seconds. How much charge has passed through the wire?

• 1.67 Coulombs

• 15 Coulombs

• 3 Coulombs

• 5 Coulombs

If 20 Coulombs of charge pass through a conductor in 4 seconds, what is the current flowing through it?

• 5 Amperes

• 80 Amperes

• 0.2 Amperes

• 24 Amperes

How long does it take for 10 Coulombs of charge to pass through a conductor if the current is 2 Amperes?

• 5 seconds

• 20 seconds

• 0.2 seconds

• 12 seconds

A light bulb has a current of 0.5 Amperes flowing through it for 1 minute. How much charge has passed through the bulb?

• 30 Coulombs

• 60 Coulombs

• 120 Coulombs

• 0.5 Coulombs

If 25 Coulombs of charge pass through a circuit in 10 seconds, what is the current?

• 2.5 Amperes

• 0.4 Amperes

• 250 Amperes

• 10 Amperes

A battery delivers a current of 1.5 Amperes for 30 seconds. Calculate the total charge delivered by the battery.

• 45 Coulombs

• 20 Coulombs

• 0.05 Coulombs

• 18 Coulombs

How long will it take for 50 Coulombs of charge to pass through a wire if the current is 10 Amperes?

• 5 seconds

• 500 seconds

• 0.2 seconds

• 10 seconds

A device draws a current of 2.5 Amperes for 2 minutes. Determine the amount of charge that has passed through the device.

• 5 Coulombs

• 150 Coulombs

• 300 Coulombs

• 120 Coulombs