Calculating Current and Charge Flow

This video tutorial by kscience.com explains the formula Q = I x T, which links charge (Q), current (I), and time (T). It covers the units for each variable and provides examples of how to calculate charge flow and current using the formula. The tutorial includes practice questions to reinforce understanding and concludes with a final example.

What is the unit of charge flow in the formula q = i × t?

• Amperes

• Coulombs

• Seconds

• Volts

What is the formula to calculate charge flow?

• q = i + t

• q = t / i

• q = i / t

• q = i × t

What is the symbol for current in the formula q = i × t?

• Q

• I

• T

• C

In the circuit example, if the current is 2 amps and the time is 10 seconds, what is the charge flow?

• 10 Coulombs

• 20 Coulombs

• 15 Coulombs

• 5 Coulombs

How do you calculate current if you know the charge and time?

• i = q × t

• i = q / t

• i = t / q

• i = t × q

If a charge of 20 coulombs flows in 5 seconds, what is the current?

• 2 Amps

• 3 Amps

• 5 Amps

• 4 Amps

What is the charge flow if the current is 0.5 amps and the time is 180 seconds?

• 70 Coulombs

• 100 Coulombs

• 80 Coulombs

• 90 Coulombs

In a circuit with a charge of 20 coulombs and a time of 40 seconds, what is the current?

• 2 Amps

• 0.5 Amps

• 1 Amps

• 0.25 Amps

How many seconds are there in two minutes?

• 240 seconds

• 180 seconds

• 120 seconds

• 60 seconds

If a circuit has a current of 100 amps and is on for 2 minutes, what is the charge flow?

• 10,000 Coulombs

• 12,000 Coulombs

• 8,000 Coulombs

• 14,000 Coulombs