I need Answers for this Questions 1, 2 and 3 (use Equation in bottom attachment)

Question

I need Answers for this Questions 1, 2 and 3 (use Equation in bottom attachment) :

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3.7 Questions 1. Show from eq uation 3.5 that the electric field lines run from higher voltages to lower voltages. 24 EXP 3. ELECTRIC FIELD PLOITINC POS. CONDUCTOR EQUIPOT. LINES FIELD LINES NEG. CONDUCTOR Figure 3.2: Electric field pattern for a plate. 2. Show from (the same) equation 3.5 that the electric field lines are perpendicular to equipotential lines. 3. What would change in this experiment if the power supply were set to 12 V instead of 6 V?

Explanation / Answer

2. Electric field lines are perpendicular to an equipotential surface. Electric field lines start on positive charges and end on negative ones. Positive charges accelerate from regions of high potential toward low potential. Negative charges accelerate from regions of low potential toward high potential.

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