engineering recuitment PGCIL Diploma Trainee Mock Test 2024 Network Theory Magnetic Coupling Circuits
Consider the following statements:
1. Mutual inductance describes the voltage induced at the ends of a coil due to the magnetic field generated by a second coil.
2. The dot convention allows a sign to be assigned to the voltage induced due to mutual inductance term.
3. The coupling coefficient is given by \(k = \frac{M}{{\sqrt {{L_1}+{L_2}} }}\)
Which of the above statements are correct?1
1, 2 and 3
2
1 and 3 only
3
1 and 2 only
4
2 and 3 only