How Do Electric Fields and Work Relate in Basic Electrical Questions?

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The discussion focuses on calculating electric field magnitude between two charges and the work done by a battery in a circuit. The electric field between charges Q1 = 2 C and Q2 = 9 C, separated by 2 m, can be determined using Coulomb's law. Additionally, the work done by a 9 V battery pushing 9 mC of charge through a circuit is calculated using the formula W = VQ. Lastly, moving 1 mC of charge between two points A and B with the same electric potential of +3 V requires no work, as there is no potential difference. Participants emphasize the importance of attempting the problems independently before seeking assistance.
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1. What is the electric field magnitude midway between charges of Q1 = 2 C and Q2 = 9 C separated by 2 m?


2. How much work does a 9 V battery do in pushing 9 mC of charge through a circuit containing one lightbulb?


3. Points A and B each have an electric potential of +3 V. How much work is required to take 1 mC of charge from A to B?

 
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Hi Fluffy22,
you need to show some effort at solving the problems before help can be given; otherwise how will we know how to help? We don't do your homework for you here!
 
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