9)potential difference between points is 230V.If 920 joules of work is required to move charge frm one point to another point, what is the magnitude of charge?
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Answer:
The total work done = energy transferred.
so, we might see the equation energy = voltage x charge, E = V * Q, written as,
work = voltage x charge, W = V * Q.
In this case, the charge is 4 mC, that is, 0.004 C and work done is 2 J.
Therefore, V=W/Q = 2/0.004 = 500 V.
Hence, the potential difference between two points if 2 J of work must be done to move a 4 mC charge from one point to another is 500 V.
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Answer:
NO
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