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Yuri [45]
3 years ago
13

An inductor is connected in series to a fully charged capacitor. Which of the following statements are true? Check all that appl

y.- As the capacitor is charging, the current is increasing.- The stored electric field energy can be greater than the stored magnetic field energy.- As the capacitor is discharging, the current is increasing.- The stored electric field energy can be less than the stored magnetic field energy.- The stored electric field energy can be equal to the stored magnetic field energy.
Physics
1 answer:
Luba_88 [7]3 years ago
3 0

Answer:

As the capacitor is discharging, the current is increasing

Explanation:

Lets take

C= Capacitance

L=Inductance

V=Voltage

I= Current

The total energy E given as

E=\dfrac{IL^2}{2}+\dfrac{CV^2}{2}

We know that total energy E is conserved so when electric energy 1/2 CV² decreases then magnetic energy 1/2 IL²  will increases.

It means that when charge on the capacitor decreases then the current will increase.

As the capacitor is discharging, the current is increasing

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Answer:

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Charge g is distributed in a spherically symmetric ball of radius a. (a) Evaluate the average volume charge density p. (b) Now a
nasty-shy [4]

Answer:

Explanation:

The volume of a sphere is:

V = 4/3 * π * a^3

The volume charge density would then be:

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If the charge density depends on the radius:

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Q = \int\limits^{2*\pi}_0\int\limits^\pi_0  \int\limits^r_0 {k * r} \, dr * r*d\theta* r*d\phi

Q = k *\int\limits^{2*\pi}_0\int\limits^\pi_0  \int\limits^r_0 {r^3} \, dr * d\theta* d\phi

Q = k *\int\limits^{2*\pi}_0\int\limits^\pi_0 {\frac{r^4}{4}} \, d\theta* d\phi

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