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Solve the following science questions related to circuit symbols and equations:

1. How much charge flows through a speaker if it is on for 20 minutes and has a current of 10A?

2. 500 coulombs of charge flow through a bulb for 25 seconds. Calculate the current through the bulb.

3. 12A of current and 984C of charge flow through a kettle. How long was the kettle switched on for?

4. A laptop is switched on for 5 hours. It has a current flowing through it of 12A. What is the total amount of charge that flowed through the laptop?

5. An iPad is left in standby mode for 3 hours. During this time, 2.16C of charge flowed through the iPad. How much current flowed through the iPad?

6. A small LED light has 200mA of current flowing through it and a charge flow of 150C. How many minutes and seconds was the light switched on for?

Answer :

Final answer:

To calculate the charge flowing through a circuit, use the formula: Charge = Current x Time. Solve each problem by substituting the given values into the formula.

Explanation:

To calculate the charge flowing through a circuit, we can use the formula:

Charge (C) = Current (A) x Time (s)

Let's solve the given problems one by one:

  1. To find the charge flowing through a speaker, we can use the formula:
  2. Charge (C) = Current (A) x Time (s)
  3. Given: Current = 10A, Time = 20 minutes = 1200 seconds
  4. Substitute the values into the formula: Charge = 10A x 1200s = 12,000C
  5. Therefore, the charge flowing through the speaker is 12,000 coulombs.
  6. Similarly, we can solve the rest of the questions using the same formula.
  7. If you have any more questions, feel free to ask.

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Rewritten by : Barada

1) I=Q/T then Q= I ×T 10* ( 20*60) = 10 (120) therefore the answer is 1200C

2) I= Q/T that is 500/ 25 and the answer is 20A