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dmitriy555 [2]
3 years ago
10

A ring of charge with uniform charge density is completely enclosed in a hollow donut shape. An exact copy of the ring is comple

tely enclosed in a hollow sphere.
A) What is the ratio of the flux out of the donut shape to that out of the sphere?
Physics
1 answer:
Naily [24]3 years ago
3 0

Answer:

Explanation:

According to Gauss's theorem , total flux coming out of a closed surface area is equal to 1/ε₀ times charge enclosed

This flux coming out of enclosed charge does not depend upon the shape of enclosing surface area . It only depends upon the charge enclosed .

It the present context , in both the case ie in case of donut or sphere , since amount of charge enclosed  is same , flux coming out too will be same in both the case

Hence the required ratio = 1 : 1

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Answer:

The maximum electrical force is 2.512\times10^{-2}\ N.

Explanation:

Given that,

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Initially the two protons are having kinetic energy given by

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mv^2=\dfrac{kq^2}{r}

r=\dfrac{kq^2}{mv^2}

Put the value into the formula

r=\dfrac{8.99\times10^{9}\times(1.6\times10^{-19})^2}{1.67\times10^{-27}\times(1200\times10^{3})^2}

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Using formula of force

F=\dfrac{kq^2}{r^2}

F=\dfrac{8.99\times10^{9}\times(1.6\times10^{-19})^2}{(9.57\times10^{-14})^2}

F=2.512\times10^{-2}\ N

Hence, The maximum electrical force is 2.512\times10^{-2}\ N.

8 0
3 years ago
Let's say you have two tuning forks which are supposed to produce the same frequency, 512 Hz. One is of good quality, but the ot
solong [7]

Answer:

= 2 beats per seconds

Explanation:

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These also shows how to get the period of the tuning forks.

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