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When you turn the handle, a small DC generator is turned, via several gears, which increases the speed.
The output is passed through a bridge rectifier and applied to a small rechargeable button cell.
The rectifier is there to make sure of the correct polarity, regardless of the direction the handle is turned and prevents the battery trying to drive the generator like a motor.
In reality, the small DC generator is actually a motor. Used in reverse, when the shaft is rotated, electricity is produced.
The motor/generator consists of permanent magnets surrounding coils of wire on a rotating shaft. The coils are connected to the outside world via copper pads arranged round the shaft. Brass brushes pick up the voltage produced, when the coils cut the magnetic field.
Some torches may differ in construction and may omit the battery, so power is only produced as the generator is turned.
The above description is based on the one I took apart, which used LEDs for the lamps.
Wiki User
∙ 12y ago
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Why is it important that the rotor is as high up in the sky as possible on a wind turbine?
The higher you go, the stronger the wind. Strong wind will generate the most electricity.
Who invented the wind up torch?
Trevor Graham Baylis invented the wind-up torch.
What are some advantages and disadvantages of using wind energy to create electricity?
The advantage is that wind is renewable- it does not get used up. Disadvantages- the wind does not always blow, it does not blow at a constant speed, and it does not always blow where electricity is needed. It can be costly to generate and store electricity from wind energy.
How does the wind up torch work?
You wind it.
What is a wind up torch?
no
Why is it important that the rotor is as high up in the sky as possible on a wind turbine?
The higher you go, the stronger the wind. Strong wind will generate the most electricity.
Who invented the wind up torch?
Trevor Graham Baylis invented the wind-up torch.
What are some advantages and disadvantages of using wind energy to create electricity?
The advantage is that wind is renewable- it does not get used up. Disadvantages- the wind does not always blow, it does not blow at a constant speed, and it does not always blow where electricity is needed. It can be costly to generate and store electricity from wind energy.
How does the wind up torch work?
You wind it.
What is a wind up torch?
no
How does a wind-up torch work?
no
How can you store wind energy?
Wind turbines only produce electricity when the wind is blowing. So they are unsuitable to be the ONLY kind of electricity generation. They can store electricity in batteries while the wind is blowing, and this will be available in times of calm. Scientists and inventors are working on other ways to store the power of the wind. One way is to use it to heat salt. The salt retains its heat for a long time, and this heat could be used to generate electricity when the wind is low. Another idea is to use wind power to pump water up from a low lying tank into a tank higher up. Then, when there is no wind, the water can be released and the pull of gravity on the water can turn turbines which generate electricity.
What are the advantages of a wind up torch?
same the batteries
How much do wind turbines contribute to the electricity supply?
It gets better. As the temperature has plummeted, the turbines have had to be heated to prevent them seizing up. Consequently, they have been consuming more electricity than they generate.
Why were nuclear electricity generating plants set up?
To generate electricity.
Can you use a 24VDC-100RPM motor as wind generator?
All DC Motors can generate electricity according to their size & input volt. 24 volt DC Motor is best for generate electricity. Even you can generate up to 24 volt AC. The big size of Motor is also depends to generate more ampere (current). Remember 24 volt DC Motor which have less RPM without gear is better & efficient for generate electricity than having the more RPM (Round Per Minute). So try it & generate electricity. (for further information, feel free to ask any thing regarding electricity, "admnpmiu_tariq@yahoo.com")
Why is using wind to generate energy a good idea?
Wind is a renewable energy. It has no carbon dioxide pollution like fossil fuels, so it adds nothing to global warming. Once it is set up the electricity is free for ever.
