Electrical Engineering: An Elementary Text-book
Electrical Engineering: An Elementary Text-book
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In our eReader you can find the full English version of the book. Read Electrical Engineering: An Elementary Text-book Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Electrical Engineering: An Elementary Text-book
What reading level is Electrical Engineering: An Elementary Text-book book?
To quickly assess the difficulty of the text, read a short excerpt:
On discharging the cell both the lead and lead peroxide are changed to lead sulphate.
Under normal conditions an accumulator should never be dis- ACCUMULATORS 183 charged so that its E. M. F. Falls lower than 1. 80 to 1. 83 volts. For the purpose of charging, a higher pressure is necessary. Soon after the beginning of the charge the E. M. F. Of a cell rises to two volts, and when completely charged becomes 2. 5 to 2. 7 volts. When gas is evolved from both plates of the accumulator, the end of t...he charge is indicated, and that no more oxygen is being absorbed by the positive plate.
The rising of the voltage during charging is firstly due to the chemical change of the plates, and then for two other reasons. There are formed bubbles of hydrogen and oxygen, which increase the back E. M. F. Of the accumulator, and further the accumulator has of course an ohmic resistance, to overcome which requires the expenditure of certain E. M. F.
After charging, the voltage of the accumulator falls immediately, down to 2.
What to read after Electrical Engineering: An Elementary Text-book?
You can find similar books in the "Read Also" column, or choose other free books by E Rosenberg to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
On discharging the cell both the lead and lead peroxide are changed to lead sulphate.
Under normal conditions an accumulator should never be dis- ACCUMULATORS 183 charged so that its E. M. F. Falls lower than 1. 80 to 1. 83 volts. For the purpose of charging, a higher pressure is necessary. Soon after the beginning of the charge the E. M. F. Of a cell rises to two volts, and when completely charged becomes 2. 5 to 2. 7 volts. When gas is evolved from both plates of the accumulator, the end of t...he charge is indicated, and that no more oxygen is being absorbed by the positive plate.
The rising of the voltage during charging is firstly due to the chemical change of the plates, and then for two other reasons. There are formed bubbles of hydrogen and oxygen, which increase the back E. M. F. Of the accumulator, and further the accumulator has of course an ohmic resistance, to overcome which requires the expenditure of certain E. M. F.
After charging, the voltage of the accumulator falls immediately, down to 2.
What to read after Electrical Engineering: An Elementary Text-book?
You can find similar books in the "Read Also" column, or choose other free books by E Rosenberg to read onlineMoreLess
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