Question
thumb_up100%
A spherical conductor with a 0.493 m radius is initially uncharged. How many electrons should be removed from the sphere in order for it to have an electrical potential of 8.10 kV at the surface?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by stepSolved in 2 steps with 2 images
Knowledge Booster
Similar questions
- There is a potential difference between the inner and outer surfaces of a cell membrane 7.5 nm thick. It takes +0.6 × 10−20 J of work for a biological pump to eject a positive singly-ionized sodium atom (Na+) from the interior of the cell. Neglecting any work the pump might have to do to overcome any non-electrostatic forces, what is the magnitude of the potential difference between the inner and outer surfaces of the cell?arrow_forwardA 2.00 nC charge is placed on the x-axis at x = -3.00 cm, another 2.00 nC charge is placed on the x-axis at x = 3.00 cm, and a third 2.00 nC charge is placed on the y-axis at y = 3.00 cm. What is the potential at the origin? %3D 2700 V 3600 V 5400 V O 1800 V O 108 Varrow_forwardA parallel-plate capacitor under the key of a keyboard has circular plates that are separated by 0.0500 mm and filled with a dielectric with k = 4.00. When the potential difference across the plates is 5.00 V , the magnitude of the charge on each plate is 8.897 pC. What is the radius of one of the plates? When the key is pressed, the distance between the plates decreases, increasing the capacitance to 1.85 pF. What is the separation between the plates when the key is pressed?arrow_forward
- The figure shows an object with positive charge and some equipotential surfaces (the dashed lines) A, B, C and D generated by the charge. What are the possible potential values of those surfaces? O A=189 V, B = 540 V, C = 933 V and D 1580 V O A=540 V; B = 333 V; C = 2500V and D = 198 V O A1580, B = 970 V, C = 540 V and D = 189 V O A = 2500 V; B = 100 V; C = 900; D = 390 V O None of the choices is correct.arrow_forwardWhat is the magnitude, in volts, of the maximum potential difference between two parallel conducting plates separated by 0.51 cm of air?arrow_forwardAn air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 2.20 mm. (a) If a 15.0 V potential difference is applied to these plates, calculate the electric field between the plates. 33 Your response differs from the correct answer by more than 100%. kV/m (b) What is the surface charge density? 80.45 Your response differs from the correct answer by more than 10%. Double check your calculations. nC/m² (c) What is the capacitance? 3.1 pF .(d) Find the charge on each plate. Enter a number. differs from the correct answer by more than 10%. Double check your calculations. pCarrow_forward
- A potential difference exists between the inner and outer surfaces of the membrane of a cell. The inner surface is negative relative to the outer surface. If 1.35 x 10-20 J of work is required to eject a positive sodium ion (Na+) from the interior of the cell, what is the magnitude of the potential difference between the inner and outer surfaces of the cell? magnitude of the potential difference: 84.38 Incorrectarrow_forwardThe drawing shows six point charges arranged in a rectangle. The value of q is 4.68 μµC, and the distance d is 0.335 m. Find the total electric potential at location P, which is at the center of the rectangle. Number i +7g d D d 5g Units +3q P 3g d d +5g +7garrow_forwardk3 8.99 x 10° Nm?/C?, me 3D 9.11 x 10-31 kg, e %3D 1.6 х 10-19 С, тр 3D 1.67 х 10-27 kg 1. Electrons start from rest and are accelerated east by two plates (parallel to the north/south directions) through a potential difference. They then pass into a second set of parallel plates 1.2 cm long (parallel to the east/west direction). When the electrons leave the second set of plates they are moving at 3.0 x 106 m/s [E 30º N]. You may ignore gravity. (For this question but not in the real world!) Find the potential difference across the first set of plates and the electric field between the second set of plates. 1.2 cm Path of electron First set of plates Second set of platesarrow_forward
- A research-level Van de Graaff generator has a 1.95 m diameter metal sphere with a charge of 5.25 mC on it. At what distance in meters from its center is the potential 1.00 MV?arrow_forwardTwo parallel conducting plates are separated by a distance d = 10.8 cm. Plate B, which is at a higher potential has a value of 620 V. The potential at x = 7.50 cm from the plate B is 79.7 V. See diagram below. (a) What is the potential of plate A? (V)arrow_forwardAn electrostatic paint sprayer has a 0.100 m diameter metal sphere at a potential of 15.0 kV that repels paint droplets onto a grounded object. (a) What charge is on the sphere? (b) What charge must a 0.200 mg drop of paint have to arrive at the object with a speed of 10.0 m/s? Please answer in terms of Carrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios