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Solve the following questions given below:
Question I: Two plane parallel conducting plates 15mm apart are held horizontal one above the other in air. The upper plate is maintained at a positive potential of 1500 V while the lower plate is earthed. Calculate the number of electrons which must be attached to a small oil drop of mass 4.9 x 10-15 kg if it remains stationary in the air between the plate (assume the density of the air is negligible in comparison to that of oil.)
Question II: If the potential of the upper plate is suddenly changed to -3500 V what is the initial acceleration of the charge drop?
I need help to determine the initial acceleration of the charge drop.
A resistor with 325? and an inductor are connected in series across an ac source that has voltage amplitude 520V . The rate at which electrical energy is dissipated in the resistor is 234W. What is the amplitude of the voltage across the inductor
A negatively charged particle moving at 45 ? angles to both the y -axis and z -axis enters a magnetic field, What is the initial direction of deflection?
The rock strikes the ground a horizontal distance of 44 m from the base of the building. Assume that the ground is level and that the side of the building is vertical. How long did the rock take to hit the ground? Give your answer in seconds to two d..
A closed box is filled with dry ice at a temperature of -88.7 oC, while the outside temperature is 24.4 oC. Find the thermal conductivity of the material from which the box is made
At 25C, the resistance of a segment of gold wire is 61 ohm. When the wire is placed in a liquid bath, the resistance increases to 199ohm ?. What is the temperature of the bath
Suppose that the sound level of a conversation is initially at an angry 72 dB and then drops to a soothing 50 dB. determine the initial and final sound intensities
The front spring of a car's suspension system has a spring constant of 2.32 x 106 N/m and supports a mass of 183 kg. The wheel has a radius of 0.433 m. The car is traveling on a bumpy road, on which the distance between the bumps is equal to the c..
An aluminum cylinder weighs 1.00 N. When this same cylinder is completely submerged in alcohol, the volume of the displaced alcohol is 3.85 10-5 m3. What is the specific gravity of the alcohol
A doubly charged ion with velocity 6.6 x 10+6 m/s moves in a path of radius 32 centimeter in a magnetic field of 0.7 T in a mass spectrometer. Find what is the mass of this ion
The blades in a blender rotate at a rate of 6440 rpm. What is the angular acceleration as the blades slow down
An object that is 5.50 centimeter tall is located 36 centimeter in front of a diverging lens. Determine the image position and size
Location A is 1.70 m to the right of a point charge q. Location B lies on the similar line and is 4.30 m to the right of the charge. The potential dissimilarity VB - VA =37.0 V. What is the magnitude and sign of the charge?
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