(a) What is the magnitude of the electric field in a region where the potential is given by the expression V = ax2 + b where a = −600 V/m2 and b = 195 V? (Substitute numerical values, and express your answer in terms of x. Assume SI units, but do not include units in your answer.) E =  V/m2   (b) What is the magnitude of the electric field at x = 6.25 m?  V/m

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.