Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > An ideal choke takes a current of 8A when connected to an a.c. source of 100 volt and 50Hz. A pure resistor under the same conditions takes a current of 10A. If two are connected in series to an a.c. supply of 100V and 40Hz, then the current in the series combination of above resistor and inductor is

An ideal choke takes a current of 8A when connected to an a.c. source of 100 volt and 50Hz. A pure resistor under the same conditions takes a current of 10A. If two are connected in series to an a.c. supply of 100V and 40Hz, then the current in the series combination of above resistor and inductor is

The coefficient of mutual inductance of the two coils is 0.5 H. If the current is increased from 2 to 3 A ln 0.01 sec. In one of them then the induced e.m.f. in the second coil is :