What'll happen if I start flowing positrons through electric appliances?
Electricity is flow of electrons & beta ray is also flow of electrons. So can electricity be produced using beta ray?
Magenta+Cyan+Yellow=? I've found in a book that its black but how?
If we can somehow defy gravity in vacuum, then will a generator rotate & produce electricity forever?
Questions
Re: Questions
Positrons will annihilate as soon as they come into contact with our electrical appliances.
Sure, if you know how to control Beta rays.
Gravity or vacuum has nothing to do with it. A generator can only produce as much energy as it is given as input.
Sure, if you know how to control Beta rays.
Gravity or vacuum has nothing to do with it. A generator can only produce as much energy as it is given as input.
Re: Questions
If I rotate the armature, it will stop because of gravity and friction. If it is vacuum then there will be no friction because of no air (except the friction in the parts), and by defying gravity the armature should rotate forever according to Newton's 1st law.tanvirab wrote:Gravity or vacuum has nothing to do with it. A generator can only produce as much energy as it is given as input.
Re: Questions
No, the effect of gravity or air on the armature is very small and negligible. In gravity less vacuum the armature will behave the same way as on Earth.
The mechanism of a generator has nothing to do with gravity or air. The armature does not stop becuase of gravity or friction. It stops because energy is being taken out by applying electric potential, which does not depend on gravity or presence of air.
The mechanism of a generator has nothing to do with gravity or air. The armature does not stop becuase of gravity or friction. It stops because energy is being taken out by applying electric potential, which does not depend on gravity or presence of air.
Re: Questions
I would like to clarify a bit more. First of all, considering the conservation of energy law to be true, you can only get at most as much power as you give as input. The armature might move forever if there is NO magnetic field. However, to produce power you need to induce current, in that case you'll need magnetic field. But according to lenz law the armature won't move forever, because the induced current will thwart the movement of the armature.bidrohi wrote:If I rotate the armature, it will stop because of gravity and friction. If it is vacuum then there will be no friction because of no air (except the friction in the parts), and by defying gravity the armature should rotate forever according to Newton's 1st law.
http://en.wikipedia.org/wiki/Lenz%27s_law
"Inspiration is needed in geometry, just as much as in poetry." -- Aleksandr Pushkin
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Re: Questions
এখানে একটু বোঝার ভুল আছে বলে মনে হইল নিউটনের ১ম সূত্র অনুসারে বল প্রয়োগ না করলে বেগ অপরিবর্তিত থাকবে। তারমানে এই না যে একটা বস্তুর উপর কোন রকম বল প্রয়োগ না করলে তা 'rotate' করতেই থাকবে। কোন কিছু বৃত্তাকার পথে ঘুরতে থাকলে তার বেগের পরিবর্তন হয় (দ্রুতির পরিবর্তন না হইতে পারে)। কারণ বেগ দিকের উপর নির্ভরশীল। সুতরাং সমদ্রুতিতে ঘুরলেও দিকের পরিবর্তনে বেগের পরিবর্তন হচ্ছে, এবং সেই বেগ পরিবর্তনের জন্য নিউটনের ১ম সূত্রানুসারে বল প্রয়োগ করতে হবে।bidrohi wrote:... by defying gravity the armature should rotate forever according to Newton's 1st law.
Every logical solution to a problem has its own beauty.
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