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morpeh [17]
3 years ago
14

3.

Physics
1 answer:
abruzzese [7]3 years ago
3 0

Answer:

I think they use it at night because they want to avoid involving themselves in road accident while crossing the street. When there are reflective strips on their clothes, drivers do notice them even at far ends of the street since the strips will reflect the rays from the car lights to the driver,hence, the driver notifies that there is a pedestrian crossing and therefore slows down.

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Coiling wire around an iron core and applying an electric current through the wire creates a temporary magnet called an electrom
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Answer:

C) Use a battery with more voltage.

Explanation:

The equation for the magnetic field around a coil is given by,

B = μ₀NI

where,

B = Magnetic flux density

μ₀ = permeability

N = number of turns per meter

I = Current in the wire

So when using a higher voltage battery, more current passes through the battery as resistance of the wire remains the same.

5 0
3 years ago
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AYUDAAA! <br> Hola, alguien podría ayudarme en esto la C), me ha complicado demasiado!!
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I dont know spanish... and i live in Cali... wow....

Explanation:

6 0
3 years ago
Above
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It had to be b Druidic
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Magnetism produced by electric current is known as...............
Triss [41]
I believe it is an electromagnet
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irakobra [83]

Rope or one could consider it to be C to B or A to D

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