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Nutka1998 [239]
3 years ago
8

Which of these best describes the difference between energy and power? A) Power and energy have nothing in common B) Energy and

power are the exact same thing. C) Energy has a time component while power does not. D) Power has a time component while energy does not.
Physics
1 answer:
Sphinxa [80]3 years ago
8 0

D.Power has a time component while energy does not. This is because power is the RATE at which work is performed.

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3 0
3 years ago
Considerable scientific work is currently under way to determine whether weak oscillating magnetic fields such as those found ne
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Answer:

\epsilon = 2.96 \times 10^{-11} \ V

Explanation:

given,

magnetic field strength =  1.40 ✕ 10⁻³ T

frequency of oscillation = 60 Hz

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EMF = ?

\epsilon = NBA\omega

\epsilon = NB(\pi\ r^2)\ (2\pi f)

\epsilon = NB(\pi\ (\dfrac{d}{2})^2)\ (2\pi f)

\epsilon = (1)\ 1.4 \times 10^{-3}(\pi\ (\dfrac{7.5 \times 10^{-6}}{2})^2)\ (2\pi\times 60)

\epsilon = 2.96 \times 10^{-11} \ V

maximum emf that can generate around the perimeter of the cell \epsilon = 2.96 \times 10^{-11} \ V

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