Physics-
General
Easy
Question
When a certain circuit consisting of a constant e.m.f. E an inductance L and a resistance R is closed, the current in, it increases with time according to curve 1. After one parameter (E, L or R) is changed, the increase in current follows curve 2 when the circuit is closed second time. Which parameter was changed and in what direction
- L is increased
- L is decreased
- R is increased
- R is decreased
The correct answer is: L is increased
slope of i – t graph slope of graph (2) < slope of graph (1) so 
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