Consider I1and I2are the currents flowing simultaneously in two nearby coils 1 & 2 respectively. If L = self inductance of coil 1

Consider I1 and I2 are the currents flowing simultaneously in two nearby coils 1 & 2, respectively. If L1 = self inductance of coil 1,M12 = mutual inductance of coil 1 with respect to coil 2, then the value of induced emf in coil 1 will be 

                                                                (JEE-2025)