Ex. 26 : An air condenser having capacity of 50 µF is charged to a potential of 200 V. If the area of each plate of condenser is 20 cm? and distance between the plates is 0.1 mm, find energy per unit volume of field between
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![Ex. 26: An air condenser having capacity of 50
µF is charged to a potential of 200 V. If the
area of each plate of condenser is 20 cm² and
distance between the plates is 0.1 mm, find
eaergy per unit volume of field between](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1451310b-0c83-4db9-b615-bd4e799d4b2f%2F72e54957-d83b-4482-9698-6135db57a2db%2Fl9n62i_processed.jpeg&w=3840&q=75)
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- A positive charge q = 1.5 C moves from A to B as shown. At point A, it has kinetic energy 15 J. What is its kinetic energy at point B, in Joules? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.A 0.079 μF capacitor is being held at a potential difference of 490 μV. a) What is the charge, in coulombs, on one of the plates? b) If you measure the size of each plate to be 49 cm2, how far apart are the plates, in micrometers? c) What is the magnitude of the electric field inside this capacitor, in newtons per coulomb?0.2m Two parallel plates of area Im are separated by 0.2 m and connected to a 12 V battery as shown below. The plates are large enough compared to their separation that they may be area = 1 m2 considered as infinite. 49. Find the electric field between the plates. 12 Volts A) 20 V/m B) 30 V/m C) 40 V/m D) 50 V/m E) 60 V/m O B OD
- A 0.069 μF capacitor is being held at a potential difference of 24 μV. Part (a) What is the charge, in coulombs, on one of the plates? Part (b) If you measure the size of each plate to be 41 cm2, how far apart are the plates, in micrometers? Part (c) What is the magnitude of the electric field inside this capacitor, in newtons per coulomb?Levitation: The largest electric field strength you can create in air before dielectric breakdown (a spark) occurs is about 3.0 x 10°V/m. Suppose you created an electric field with this strength – pointing directly upward – between a set of parallel plates that are 9.9cm apart. You want to use this system to levitate water droplets with a mass of 1.8g. (a) How much charge would you have to put on a droplet to make it levitate? (b) Suppose that 43 charged droplets are levitating and the field strength suddenly drops by 24 percent, to about 2.3 x 106 V/m, how quickly would the droplets accelerate? E1. An eletrostatic paint sprayer consists of a charged metal sphere. Charged paint droplets (the sign the same as the metal sphere) are shot towards the metal sphere using a paint gun. The paint droplets repel and move towards a grounded object that needs to be painted. In the figure below, an electrostatic paint sprayer has a 0.2 m diameter metal sphere at a potential V sphere of 27 kV that repels paint droplets onto a grounded wall. Vwall =0 paint drop repelled to the wall V Vsphere Electrostatic Paint Sprayer (a) What charge is on the sphere? Qsphere (b) What charge must a 0.05 mg drop of paint have to arrive at the object with a speed of 14 S 9 drop C