Transformer Question 2
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rg1
Well-known member
Hints
1. Total voltage across both paths is same.
2. Voltage across transformers comes from transformation ratio give.
3. Current in one path in given, the current in other path will be such that (1) above is satisfied.
Szar
Commander of the Legion of the Unholy Pear
Well I cant seem to get the math to work on this either.
Glad rg1 can help on this one!
Glad rg1 can help on this one!
rg1
Well-known member
Please follow the steps (in circles) in the given diagram to reach the answer. Step 4 is interesting. I would like you guys understand the stuff. If you do not follow how I got a particular answer in a particular step, just let me know. I will explain that step.
Szar
Commander of the Legion of the Unholy Pear
rg1,
I understand what you did, and this is probably a misunderstanding on my part, but the original problem indicated the polarity was on top for both coils. If the current is flowing down in the left path across the 2 k-ohm resistor, would it not also have to be flowing the same direction (downward) through the 4 k-ohm resistor in order to keep the currents correct?
I understand what you did, and this is probably a misunderstanding on my part, but the original problem indicated the polarity was on top for both coils. If the current is flowing down in the left path across the 2 k-ohm resistor, would it not also have to be flowing the same direction (downward) through the 4 k-ohm resistor in order to keep the currents correct?
Szar
Commander of the Legion of the Unholy Pear
Never mind... I'm not sure where my head was on that!
rg1
Well-known member
The dot notation for transformer is- If in one dot the current goes in the coil, in the other dot the current will come out of the coil. The voltage sign on dots will be same as positive. So in left coil, the current goes in and in the right coil current comes out. The left coil consumes power and the right coil delivers power!!!!
rg1
Well-known member
It is my pleasure. If any one is having any doubt or if you are not getting some question, you can PM me, Whenever I visit the forum, I will try to answer your queries.
