 | Silvanus Phillips Thompson - Electric power - 1881 - 474 pages
...succeeded in matching the unknown resistance by one equal to it from amongst the known resistances, the currents in the two branches will be equal, and...show no deflection. With an accurate instrument this null method is very reliable, j (d) The best of all the ways of measuring resistances is, however,... | |
 | Elroy McKendree Avery - Physics - 1885 - 622 pages
...we have succeeded in matching the unknown resistance by one equal to it from the known resistances, the currents in the two branches will be equal and the needle of the differential galvanometer mil show no deflection. With an accurate instrument, this method is very reliable. Or we may vary the... | |
 | Elroy McKendree Avery - Physics - 1885 - 616 pages
...the currents in the two branches will be equal and the needle of the differential galvanometer mil show no deflection. With an accurate instrument, this method is very reliable. Or we may vary the resistance of the second circuit until it balances the given resistance ; remove... | |
 | Silvanus Phillips Thompson - Electric power - 1894 - 648 pages
...succeeded in matching the unknown resistance by one equal to it from amongst the known resistances, the currents in the two branches will be equal, and...needle of the differential galvanometer will show no deflexion. This null method is very reliable. (d) Bridge Method. — The best of all the ways of measuring... | |
 | Silvanus Phillips Thompson - Electric power - 1894 - 668 pages
...resistance by one equal to it from amongst the known resistances, the currents in the two braflches will be equal, and the needle of the differential galvanometer will show oo deflexion. This null method is very reliable. (d) Bridge Method. — The best of all the ways of... | |
 | Elroy McKendree Avery - Physics - 1895 - 630 pages
...respectively, the resistance, R, may be calculated by the inverse proportion : tan a : tan b::r:R. (c) Another method is to divide the circuit into two...the galvanometer again is nil. Compare § 132 (6), (r/) The method that has the most general application is that known as the Wheatstone bridge. In Fig.... | |
 | Silvanus Phillips Thompson - Electric power - 1915 - 744 pages
...succeeded in matching the unknown resistance by one equal to it from amongst the known resistances, the currents in the two branches will be equal, and the needle of the differential FIG. 242. — Measurement of Resistance by Differential Galvanometer. galvanometer will show no deflexion.... | |
 | Silvanus Phillips Thompson - Electric power - 1915 - 778 pages
...Bucceeded in matching tie unknown resistance by one equal to it from amongst the known resistances, the currents in the two branches will be equal, and the needle of tltf differential galvanometer will show no deflexion. Tte null method is very exact. (t[) Bridge Methods.... | |
 | Nehemiah Hawkins - Electric engineering - 1917 - 364 pages
...resistance box has been so adjusted that its. resistance is the same as the unknown resistance the current in the two branches will be equal, and the needle of the galvanometer will show no deflection. DIFFERENTIAL GALVANOMETER ) RESISTANCE BOX I < o UNKNOWN RESISTANCE... | |
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... round one set of coils of the galvanometer, the other part of the current being made to flow through the known resistances and then round the other set of coils in the opposing direction. When we have succeeded in matching the unknown resistance by... 