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VMariaS [17]
3 years ago
15

A current is always developed in the secondary of a transformer. true or false

Physics
1 answer:
Maurinko [17]3 years ago
3 0
False. only when supply 'alternate' current in the primary.
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What is the Lorentz force law used for?
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Lorentz force, the force exerted on a charged particle q moving with velocity v through an electric E and magnetic field B. The entire electromagnetic force F on the charged particle is called the Lorentz force (after the Dutch physicist Hendrik A. Lorentz) and is given by F = qE + qv × B.

Explanation:

N/A

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I do not recall the answer to this question
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English units of distance include the
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Explanation: heres a hint think aboyt the distance between your house to school

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Fill in the blank. Consider the inverse square law: When light leaves a light bulb, it spreads out over more and more space as i
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Explanation:

Intensity of light is inversely proportional to distance from source

I ∝ 1 /r²  where I is intensity and r is distance from source . If I₁ and I₂ be intensity at distance r₁ and r₂ .

I₁ /I₂ = r₂² /r₁²

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I₁ / I₂ = (4r₁ )² / r₁²

= 16 r₁² / r₁²

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So intensity will become 16 times less bright .

"16 times " is the answer .

8 0
2 years ago
4 Suggest four ways in which participating in physical activities can build healthy relationship? 5.Show in two ways the influeb
valina [46]

Answer:

  • Increases levels of well-being neurotransmitters
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Explanation:

Performing physical activities helps to build a healthy relationship with yourself, in the sense that physical activity promotes health at all levels. Health is a set of physical, mental and social well-being, so physical activity reaches all these levels and increases the quality of life for a person as a whole.

There are several types of physical activities that can be performed and you can choose the one that best fits your preferences and routine. A walk for example can be done in any safe place and at any time and it already helps in improving physical conditioning, in receiving serotonin and endorphins, in reducing blood pressure and protecting the heart and in improving mental health.

So the ideal is for each person to set their own goals in relation to their health and seek to achieve them, either to have a better quality of life, to socialize more with people, to prevent diseases, etc.

8 0
2 years ago
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