Physics
Physics, 29.11.2019 00:31, Kizmit4938

In an electrical circuit, a capacitor is placed in parallel with an inductor and a switch in series. initially, the switch is open, and the capacitor has a charge q0. the switch is then closed, and the changes in the system are observed. it turns out that the equation describing the subsequent changes in charge, current, and voltage is very similar to that of simple harmonic motion, studied in mechanics. to obtain this equation, we will use the law of conservation of energy. initially, the entire energy of the system is stored in the capacitor. when the circuit is closed, the capacitor begins to discharge through the inductor. as the charge of the capacitor decreases, so does its energy. on the other hand, as the current through the inductor increases, so does the energy stored in the inductor. assuming no heat loss and no emission of electromagnetic waves, energy is conserved, and at any point in time, the sum of the energy stored in the capacitor uc and the energy stored in the inductor ul is a constant u. u=uc+ul=(q^2)/(2c)+(li^2)/2,where q is the charge on the capacitor and i is the current through the inductor ( q and i are functions of time, of course). for this problem, take clockwise current to be positive.

answer
Answers: 3

Other questions on the subject: Physics

image
Physics, 21.06.2019 23:20, pineapplepizaaaaa
Acharge of 8.4x10^-4 c moves at an angle of 35 degrees to a magnetic field that has a field strength of 6.7x10^-3 t. if the magnetic force is 3.5 x10 ^-2 n, how fast is the charge moving?
Answers: 1
image
Physics, 22.06.2019 00:50, Amandarobersonn
While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. her friend, a hockey player, then shoots a hockey puck at each shoe. the first puck immediately comes to rest after it collides with the left shoe. the second puck rebounds after it collides with the right shoe. if each hockey puck has the same incoming speed, which shoe has greater speed after the collision? the right shoe. both shoes have the same speed. the left shoe.
Answers: 3
image
Physics, 22.06.2019 11:20, loganfreeman04
If the radius of curvature of the cornea is 0.75 cm when the eye is focusing on an object 36.0 cm from the cornea vertex and the indexes of refraction are as described before, what is the distance from the cornea vertex to the retina? express your answer to two significant
Answers: 3
image
Physics, 22.06.2019 14:50, lilyrockstarmag
Abar magnet cut in half will form a total ofpoles. a)fourb)eightc)two
Answers: 1
Do you know the correct answer?
In an electrical circuit, a capacitor is placed in parallel with an inductor and a switch in series....

Questions in other subjects:

Konu
Mathematics, 03.08.2020 14:01
Konu
Mathematics, 03.08.2020 14:01