Calculate the energy transferred by a 12V hairdryer, running on a current of 0.50A, that is left on for 8.0 minutes.

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28-04-2021
Physics

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Calculate the energy transferred by a 12V hairdryer, running on a current of 0.50A, that is left on for 8.0 minutes.

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vh85umasbx vh85umasbx · Answer 1 · 2021-04-28T07:49:02+02:00

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28-04-2021

Step 1
List all the information in symbol form and change into appropriate and consistent SI units if required.
V=12V
I=0.5A
t = 8.0 minutes
= 8 × 60
= 480s
E=?
Step 2
Use the correct formula.
E=IVt
Step 3
Calculate the answer by putting the numbers into the formula.
E = IVt
= 0.5 × 12 × 480
= 2880J
The answer is 2880J :) hope this helps!

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