A water heater produces heat of 2000 J in 20 seconds if the heater drow 1A current find the resistance if the heater if coil
Answers
Answer:
I not understanding the question plz you sherch in the Google
Answer:
Because the resistance of the heater element would change with its temperature, it would be impossible to answer the question accurately; only an approximate answer could be given. Also, I would like to know the reason for the question. Do you really want to operate the heater on a lower voltage? If so, why? 200 volts is not even a standard voltage.
None of the questions in this series seem intended to provide helpful or practical information. Rather, it looks as though someone has spent time devising abstract questions of a type which one might find on a high school physics test. But even for a physics test, some of the questions would make absolutely no sense the reason being that the information provided is insufficient to provide a definitive answer.
Some of the questions on quora are good because they lead to interesting conversations and an exchange of different points of view, but questions like the ones in this series seem useless