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June 21, 2019, 08:06:47 am

Author Topic: 1/2 Electricity Question  (Read 165 times)  Share 

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DoubleZo7

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1/2 Electricity Question
« on: January 28, 2019, 12:18:15 pm »
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Hello
Could someone please help me with this question?
The potential difference across a buzzer is found to be 3.9 V. The current flowing through it is 450 mA. How much energy is lost by this charge every 30 seconds?
thank-you
« Last Edit: January 28, 2019, 12:29:57 pm by DoubleZo7 »
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sweetcheeks

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Re: 1/2 Electricity Question
« Reply #1 on: January 28, 2019, 01:09:27 pm »
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Do you have any ideas on how to solve the question? I suggest looking to the various units that you have and seeing if there is a formula which utilises them.