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sleet_krkn [62]
4 years ago
7

Which best explains why no current is induced? The wire needs to be coiled less tightly. The wire needs to be straight, not coil

ed. The magnet needs to be moved through the coils of wire. The magnet needs to be held above the coils of wire.
Physics
2 answers:
Leto [7]4 years ago
8 0

Answer : The magnet needs to be moved through the coils of wire.

Explanation : When the moves magnet towards the coil or coil towards the magnet then the change the flux and induced emf and induced current in the coil.

So, we can say that the magnet needs to be moved through the coils of wire that's why no current is induced in the coil.

Ann [662]4 years ago
7 0
The magnet needs to be held above the coils of wires

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Answer:

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From Rayleigh Criterion

\theta=1.22\frac{\lambda}{D}\\\Rightarrow D=1.22\frac{\lambda}{\theta}\\\Rightarrow D=1.22\frac{1.3\times 10^{-3}}{22\times 10^{-6}\frac{\pi}{180\times 3600}}\\\Rightarrow D=14869817.395\ m

Diameter of the effective primary objective is 14869817.395 m

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