3 years ago

It protects electrical appliances from damage

Physics

1 answer:

taurus [48]3 years ago

8 0

Answer:

e, Relay

Explanation:

When short circuit or serious overload current occurs in the circuit,,the electromagnet generates enough suction to cut off the power supply.

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What is the charge on an object that has 1.09x10^13 excess electrons?

Nadya [2.5K]

Answer:

$-1.74\cdot 10^{-6} C$

Explanation:

The electron is the particle that rotates around the nucleus of the atom; it has a negative electric charge equal to :

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In this problem, the number of excess electrons in the object is:

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Therefore, by plugging it the numbers, we can find the value of Q, the total charge of the object:

$Q=(1.09\cdot 10^{13})(-1.6\cdot 10^{-19})=-1.74\cdot 10^{-6} C$

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