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SVEN [57.7K]
3 years ago
8

Under what conditions does moving electric charge produce a magnetic force

Physics
2 answers:
krek1111 [17]3 years ago
8 0

Answer:

I'm pretty sure that the answer is C. Hope this helps.

Explanation:

notsponge [240]3 years ago
7 0

Answer:

Answer is A. Under any conditions

Explanation:

Just got it correct on A p e x

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How many excess electrons must be distributed uniformly within the volume of an isolated plastic sphere 23.0 cm in diameter to p
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Answer:

10573375000

216.57162\ N/C

Explanation:

k = Coulomb constant = 8.99\times 10^{9}\ Nm^2/C^2

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E = Electric field = 1150 N/C

Electric field is given by

E=\dfrac{kq}{r^2}\\\Rightarrow q=\dfrac{Er^2}{k}\\\Rightarrow q=\dfrac{1150\times 0.115^2}{8.99\times 10^9}\\\Rightarrow q=1.69174\times 10^{-9}\ C

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n=\dfrac{1.69174\times 10^{-9}}{1.6\times 10^{-19}}\\\Rightarrow n=10573375000

Number of excess electrons is 10573375000

r = 0.115+0.15 = 0.265 m

E=\dfrac{kq}{r^2}\\\Rightarrow E=\dfrac{8.99\times 10^9\times 1.69174\times 10^{-9}}{0.265^2}\\\Rightarrow E=216.57162\ N/C

The electric field is 216.57162\ N/C

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