Someone please help!!! 1) The potential of point 1 is f1 = 3 V. The voltage betw

Question

Someone please help!!!

1) The potential of point 1 is f1 = 3 V. The voltage between point 1 and 2 is V21 = 2 V. What is the potential of point 2(UNIT: V)?
2) There are three points 1, 2, and 3 in the electric field. The potential of point 1 is f1=0 V. The voltages V21 = 7.2 V; V31 = 8.2 V; Find the voltage V32. (UNIT: V)
3) The potential of point 2 is f2 = 4.8 V. The voltage between points 1 and 2 is V21 = 3.3 V. What is the potential of point 1? (Unit: V)
4) Calculate the energy required to move 8 C charge between point A and B . Point A potential :3 V Point B:0V .(UNIT: J)

Explanation / Answer

1) v21 = V2 - v1 = 2 V1 = 2+3 = 5V 2) V2 = 7.2+0 = 7.2 V V3 = 7.2+0 = 8.2V V32 = V3 - V2= 1V 3) V2-V1 = 3.3V V1 = 4.8-3.3 = 1.5V 4) E = (3-0)*8 = 24 J

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