Three capacitors having capacitances of 8.4, 8.4, and 4.2 μ F are connected in series across a 36-V potential difference, (a) What is the charge on the 4.2- μ F capacitor? (b) What is the total energy stored in all three capacitors? (c) The capacitors are connected from the potential difference without allowing them to discharge. They are then reconnected in parallel with each other, with the positively charged plates connected together. What is the voltage across each capacitor in the parallel combination? (d) What is the total energy now stored in the capacitors?
Three capacitors having capacitances of 8.4, 8.4, and 4.2 μ F are connected in series across a 36-V potential difference, (a) What is the charge on the 4.2- μ F capacitor? (b) What is the total energy stored in all three capacitors? (c) The capacitors are connected from the potential difference without allowing them to discharge. They are then reconnected in parallel with each other, with the positively charged plates connected together. What is the voltage across each capacitor in the parallel combination? (d) What is the total energy now stored in the capacitors?
Three capacitors having capacitances of 8.4, 8.4, and 4.2 μF are connected in series across a 36-V potential difference, (a) What is the charge on the 4.2-μF capacitor? (b) What is the total energy stored in all three capacitors? (c) The capacitors are connected from the potential difference without allowing them to discharge. They are then reconnected in parallel with each other, with the positively charged plates connected together. What is the voltage across each capacitor in the parallel combination? (d) What is the total energy now stored in the capacitors?
Your answer is partially correct.
Two small objects, A and B, are fixed in place and separated by 2.98 cm in a vacuum. Object A has a charge of
+0.776 μC, and object B has a charge of -0.776 μC. How many electrons must be removed from A and put
onto B to make the electrostatic force that acts on each object an attractive force whose magnitude is 12.4 N?
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Problem 4) A particle is being pushed up a smooth slot by a rod. At the instant when 0 = rad,
the angular speed of the arm is ė = 1 rad/sec, and the angular acceleration is = 2 rad/sec².
What is the net force acting on the 1 kg particle at this instant? Express your answer as a vector
in cylindrical coordinates. Hint: You can express the radial coordinate as a function of the angle
by observing a right triangle. (20 pts)
Ꮎ
2 m
Figure 3: Particle pushed by rod along vertical path.
4
Problem 4) A particle is being pushed up a smooth slot by a rod. At the instant when 0 = rad,
the angular speed of the arm is ė = 1 rad/sec, and the angular acceleration is = 2 rad/sec².
What is the net force acting on the 1 kg particle at this instant? Express your answer as a vector
in cylindrical coordinates. Hint: You can express the radial coordinate as a function of the angle
by observing a right triangle. (20 pts)
Ꮎ
2 m
Figure 3: Particle pushed by rod along vertical path.
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How To Solve Any Circuit Problem With Capacitors In Series and Parallel Combinations - Physics; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=a-gPuw6JsxQ;License: Standard YouTube License, CC-BY