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Evgesh-ka [11]
3 years ago
14

The image shows copper wire coiled around an iron nail and connected to a battery to create an electromagnet. Which factors dete

rmine the strength of this electromagnet? A. the voltage of the battery and the size of the switch B. the size of the nail and the size of the switch. C. the amount of electric current and the number of wire coils around the nail D. the number of coils of wire around the nail and the length of the wire in the circuit
Physics
1 answer:
d1i1m1o1n [39]3 years ago
8 0

The strength of the electromagnet depends on the amount of electric current
through the wire coil and the number of turns of wire in the coil. 

But the current through the wire depends directly on the voltage of the battery,
so that's also indirectly involved.


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<h3>Energy of a photon</h3>

The energy of a given photon of light is calculated using the wavelength and the speed of light.

<h3>Energy of a red photon</h3>

The energy of the a red photon at the given wavelength is calculated as follows;

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E_r = \frac{hc}{\lambda} \\\\E_r = \frac{6.67 \times 10^{-34} \times 3 \times 10^8}{250 \times 10^{-9}} \\\\E_r = 8.0 \times 10^{-19} \ J

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Learn more about energy of a photon here: brainly.com/question/7464909

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After landing on an unexplored Klingon planet, Spock tests for the direction of the magnetic field by firing a beam of electrons
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Answer:

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