Saved Bookmarks
| 1. |
The e.m.f. of one accumulator is e, its internal resistance is r. Find the e.m.f. epsi and the internal resistance R_(i) of a battery of n accumulators connected (Fig. 26.10): (a) in series, (b) in parallel, (c) in m series-connected groups of k accumulators, m lt n. k = n/m, where the accumulators are connected in parallel. |
|
Answer» (b) When the cells are connected in parallel, the e.m.f. remaias unchanged, but the internal conductances are added. (c) in a mixed connection we calculate first the e.m.i. and the internal RESISTANCE of a group, and then the game parameters for the battery as a WHOLE. |
|