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Lilit [14]
3 years ago
9

If there is no electric current flowing through a wire then what happens to the magnetic field

Physics
2 answers:
lukranit [14]3 years ago
8 0

There will be no magnetic field if there is no current flowing.

Zinaida [17]3 years ago
7 0
If there is no current in the wire .....the direction of magnetic field remains unchanged
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An ideal refrigerator does 130. 0 j of work to remove 780. 0 j of heat from its cold compartment during each cycle. what is the
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The refrigerator's coefficient of performance is 6.

The heat extracted from the cold reservoir Q cold (i.e., inside a refrigerator) divided by the work W required to remove the heat is known as the coefficient of performance, or COP, of a refrigerator (i.e., the work done by the compressor). The required inside temperature and the outside temperature have a significant impact on the COP.

As the inside temperature of the refrigerator decreases, its coefficient of performance decreases. The coefficient of performance (COP) of refrigeration is always more than 1.

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Refrigerator's coefficient of performance = H/W

                                                                     = 780/130

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Therefore, the refrigerator's coefficient of performance is 6.

Energy conservation requires the exhaust heat to be = 780 + 130

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Learn more about  coefficient here:

brainly.com/question/18915846

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Hello,

The answer is option A "Venus".

Reason:

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If you need anymore help feel free to ask me!

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