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learning_phys
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In a step-up transformer, since you can increase the voltage by increasing the number of turns on the second circut, where does this extra voltage come from? why does this not violate conservation of energy?
learning_phys said:In a step-up transformer, since you can increase the voltage by increasing the number of turns on the second circut, where does this extra voltage come from? why does this not violate conservation of energy?
learning_phys said:power loss from the step up voltage is still: P=IV=1A*1MV=1MW
I don't see how increasing the voltage and decreasing the current helps because P_loss=I1V1=I2V2
No the total power USED is 1MV * 1A = 1MW, but you want to use it all anywaylearning_phys said:power loss from the step up voltage is still: P=IV=1A*1MV=1MW
learning_phys said:i'm still confused, i thought we are apply 1MV across the wires
why do we calculate the voltage for the wire? Where does the 1MV play into this?
learning_phys said:In a step-up transformer, since you can increase the voltage by increasing the number of turns on the second circut, where does this extra voltage come from? why does this not violate conservation of energy?
learning_phys said:ahhh makes sense now. where does alternating current come into play?
A step-up transformer is an electrical device that is used to increase the voltage of an alternating current (AC).
A step-up transformer works by using electromagnetic induction to increase the voltage of the electrical current passing through it. It consists of two sets of coils, a primary coil with fewer turns and a secondary coil with more turns, connected by a magnetic core. When an AC current is passed through the primary coil, it creates a changing magnetic field which induces a higher voltage in the secondary coil.
The main purpose of a step-up transformer is to increase the voltage of an electrical current. This is useful in power transmission, as higher voltages can be transmitted over longer distances with less energy loss. Step-up transformers are also used in various electronic devices to convert low voltage AC to higher voltage AC.
The most common problem with step-up transformers is overheating. This can be caused by overloading the transformer or using it with the wrong input voltage. Another potential issue is insulation breakdown, which can lead to short circuits. It is also important to regularly check and maintain the connections and condition of the transformer to prevent any malfunctions.
If you are experiencing problems with a step-up transformer, the first step is to check the input and output voltage levels to ensure they are within the specified range. You should also check for any loose connections or signs of damage. If the transformer is overheating, try reducing the load or using a transformer with a higher power rating. If the problem persists, it is best to consult a professional electrician or replace the transformer altogether.