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Part A A potential difference of 5.00 k V is established between parallel plates in air. If the air becomes ionized (and hence electrically conducting) when the electric field exceeds 3.07x10 V/m , what is the minimum separation the plates can have without ionizing the air? F O : ? d= mm Submit Request Answer Provide Feedback Next >Part A A particle with a charge of 4.50 nC is in a uniform electric field E directed to the left. It is released from rest and moves to the left; after it has moved 8.00 cm , its What work was done by the electric force? kinetic energy is found to be 1.50x10-6 J. W = 1.50x10-6 J Submit Previous Answers Correct Part B What is the potential of the starting point with respect to the endpoint? AEd AV = -333.3 V Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remainingV Part A A small particle has charge -2.90 /C and mass 2.30x10-4 kg . It moves from point A, where the electric potential is VA = 270 V , to point B, where the What is its speed at point B? electric potential VB = 770 V is greater than the potential at point A. The electric force is the only force acting on the particle. The particle has a speed of 4.80 m/s at point A. VO AEQ :8 ? U = m/s Submit Request Answer V Part B Is it moving faster or slower at B than at A? O Faster O Slower Submit Request Answer Provide FeedbackPart A Two point charges q1 = +2.40nC and q2 = -6.75nC are 0.100 m apart. Point A is midway between them; point B is 8.00x10-2 m from q, and Find the potential at point A. 6.00x10-2 m from q2. (See the figure below(Figure 1).) Take the electric potential to be zero at infinity. AZO V : V Submit Request Answer Part B Find the potential at point B. AEd 0 8 ? V Submit Request Answer Part C Figure Find the work done by the electric field on a charge of 2.60 nC that travels from point B to point A. B AEd ? W = 0.080 m 0.060 m - Submit Request Answer 91 92 Provide FeedbackPart A A parallel-plate capacitor having plates 5.8 cm apart is connected across the terminals of a 12 V battery. Part B Do the same for the equipotential surface that is at 2.6 V relative to the negative plate. Express your answer using two significant figures. d = 1.3 cm from the negative plate. Submit Previous Answers Correct Part C What is the potential gradient between the plates? Express your answer using two significant figures. AEQ ? E = 2.07 V/m Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining