Recent content by sha_virgo
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Battery charging of cell phone using solar energy
hi... i have a thought in advance, that i can charge my cell phone through solar energy itself . actually I am doing my activities regarding that... giva me some suggestions which is helpful for me.. and i want to know why this is still not in market..my project is reasonable or not ?...- sha_virgo
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- Battery Cell Charging Energy Solar Solar energy
- Replies: 2
- Forum: Electrical Engineering
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How to connect 12 white LEDs in series with 390Ω resistors on 12V
connect all your LED in series . and ech LED should have each resistors.ie:- connect the resistors across LED depending on the range ..Quite a few of the answers were along the lines of "Wire each one with a resistor, you'll get better results." I've read claims that without a resistor, voltage...- sha_virgo
- Post #4
- Forum: Electrical Engineering
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UPS Load Problem: Solutions & Recovery
hi... i would like to know the fact of UPS(uninterruptible power supply) that why sometimes UPS has some problem to satisfy the load and how to recover the problem...- sha_virgo
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- Load
- Replies: 5
- Forum: Electrical Engineering
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How does energy conversion work in DC machines?
energy coonversion is taking place in dc machines by the action of lenz law.current passes thru the coil which felts under magnetic field and turns to induction principle.ie: curren carrying conductor in a magnetic field effects a force which inturns into a torque.- sha_virgo
- Post #5
- Forum: Electrical Engineering
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Determining Signal Transmission Speed in a Transmission Line
hi,, the transmission speed is propably depends on the line capacitance and line inductance,both components are reciprocal to speed.- sha_virgo
- Post #7
- Forum: Electrical Engineering