Electric And Magnetic Measurements And Measuring Instruments
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In our eReader you can find the full English version of the book. Read Electric And Magnetic Measurements And Measuring Instruments 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 Electric And Magnetic Measurements And Measuring Instruments
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65, the wiring connections being shown by the heavy lines. As will be noted, keys are in- serted in the battery and galvanometer cir- cuits, in order that these may be manipulated at the will of the operator. The separate re- sistance coils forming the bridge and rheostat arms are made as nearly non-inductive as pos- sible, by making each one of a loop of wire, that is, a wire doubled on itself before wind- ing. After being adjusted to the proper resistance the terminals of these loops are sold...ered to heavy brass^ blocks, as is shown in Fig. 66. Taper plugs may be inserted, that fit snugly be- tween the members of each pair, which when in place short circuit their respective coils and offer a negligible resistance. To insert given resistance in circuit, therefore, the plug making connections between the two terminals is simply re- moved.
It is common to give the resistance coils the value in ohms indicated by the numerals in Fig. 65. As can be seen by in- spection of this figure, resistances of from 1 ohm to 11, 110 ohms, varying by steps of one ohm at a time, are attainable in the rheostat arm, by pulling out the proper plugs, and the ratio arms may be adjusted from a given value of the B divided by A ratio, of 100 to 1 to a value of same ratio of T ^, thus making the theoretical range of the instrument from 1, 110, 000 ohms to .
What to read after Electric And Magnetic Measurements And Measuring Instruments?
You can find similar books in the "Read Also" column, or choose other free books by Frank W Roller to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
65, the wiring connections being shown by the heavy lines. As will be noted, keys are in- serted in the battery and galvanometer cir- cuits, in order that these may be manipulated at the will of the operator. The separate re- sistance coils forming the bridge and rheostat arms are made as nearly non-inductive as pos- sible, by making each one of a loop of wire, that is, a wire doubled on itself before wind- ing. After being adjusted to the proper resistance the terminals of these loops are sold...ered to heavy brass^ blocks, as is shown in Fig. 66. Taper plugs may be inserted, that fit snugly be- tween the members of each pair, which when in place short circuit their respective coils and offer a negligible resistance. To insert given resistance in circuit, therefore, the plug making connections between the two terminals is simply re- moved.
It is common to give the resistance coils the value in ohms indicated by the numerals in Fig. 65. As can be seen by in- spection of this figure, resistances of from 1 ohm to 11, 110 ohms, varying by steps of one ohm at a time, are attainable in the rheostat arm, by pulling out the proper plugs, and the ratio arms may be adjusted from a given value of the B divided by A ratio, of 100 to 1 to a value of same ratio of T ^, thus making the theoretical range of the instrument from 1, 110, 000 ohms to .
What to read after Electric And Magnetic Measurements And Measuring Instruments?
You can find similar books in the "Read Also" column, or choose other free books by Frank W Roller to read onlineMoreLess
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