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Complete the following statement: The electron volt is a unit of A) energy B) el

ID: 1640385 • Letter: C

Question

Complete the following statement: The electron volt is a unit of A) energy B) electric field strength. C) electric force. D) electric potential difference. E) electric power. Use the following to answer questions 2-3: The sketch below shows cross sections of equipotential surfaces between two charged conductors that are shown in solid grey. Various points on the equipotential surfaces near the conductors are A, B, C, ....I. How much work is required to move a -1.0 mu C charge from A to E? A) +3.0 times 10^-5 J B) -4.0 times 10^-5 J C) + 7.0 times 10^-5 J D) -7.0 times 10^-5 J E) zero Joules What is the potential difference between points B and E? A) 10 V B) 30 V C) 40 V D) 50 V E) 60 V

Explanation / Answer

1. Ans (A)

2. potential difference between E and A is -40-30= -70 V

therefore work done = -1 x 10^-6 x (-70) = + 7 x 10^-5 Ans (C)

3. 50V Ans (D)