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3 years ago

What causes electric current in a wire

Physics

1 answer:

anygoal [31]3 years ago

6 0

Answer:

The difference in potential at two points in a wire causes electric current in a wire.

Explanation:

Electric Current:

The flow of Electric charges is called Electric Current.

An electric current is said to exist when there is a net flow of electric charge through a region. In electric circuits this charge is often carried by electrons moving through a wire.

Electrons move in a wire from lower potential to higher potential because, positive charge attracts the negative charge and causes it to move towards itself.

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The risk of earthquakes is high along the Pacific coast of the United States because a. There have been no earthquakes there lat

Ludmilka [50]

(D) That's where the Pacific and North American plates meet.

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3 years ago

A 1400-kg car moving with a speed of 32 m/s is approaching a stoplight. The light turns yellow and the car makes an abrupt stop

inna [77]

Answer:

c. 716, 800 J

Explanation:

t = Time taken

u = Initial velocity = 32 m/s

v = Final velocity = 0

s = Displacement = 60 m

a = Acceleration

m = Mass of car = 1400 kg

$v^2-u^2=2as\\\Rightarrow a=\dfrac{v^2-u^2}{2s}\\\Rightarrow a=\dfrac{0^2-32^2}{2\times 60}$

Work done is given by

$W=Fscos\theta\\\Rightarrow W=mascos\theta\\\Rightarrow W=1400\times \dfrac{0^2-32^2}{2\times 60}\times 60\times cos0\\\Rightarrow W=-716800\ J$

The amount of work done to stop the car is 716800 J

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3 years ago

List 5 good insulators and 5 good conductors

damaskus [11]

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Conductors- metals, wire, most metals
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3 years ago

Your’re working with a patient who suddenly falls. You should

Alenkinab [10]

Answer:

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Explanation:

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3 years ago

Read 2 more answers

How much force does it take to accelerate a 50.8 kg person at 3.50 m/s^2?

Vikki [24]

Apply Newton's second law to the person's motion:

F = ma

F = net force, m = mass, a = acceleration

Given values:

m = 50.8kg, a = 3.50m/s²

Plug in and solve for F:

F = 50.8(3.50)

F = 178N

8 0

3 years ago