The electric potential at x _ 3.0 m is 120 V, and the electric potential at x _ 5.0 m is 190 V. What is the electric fi eld in this region, assuming its constant? (a) 140 N/C (b) _140 N/C (c) 35 N/C (d) _35 N/C (e) 75 N/C
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