CUET Preparation Today
The terminal voltage of a cell connected to an external resistance R is |
always less than its e.m.f.
always equal to its e.m.f. always greater than its e.m.f. greater or less than its e.m.f. depending on the direction of the current through it |
greater or less than its e.m.f. depending on the direction of the current through it |
V = E – lr when cell is being discharged = E + lr when the cell is being charged.
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