Select the correct answer for each Q1. Two parallel wires carrying opposite direction currents will (a) be attracted to each other (e) repel each other (b) not affect each other (d) attract, then repel each other Q2. Ferrites are...................... materials (a) paramagnetic (b) diamagnetic (c) ferromagnetic (d) bipolar Q3. Mutual inductance between two magnetically-coupled coils depends on (a) Permeability of the core (c) Cross-sectional area of their common core (b) The number of their turns (d) All choices Q4. Which of the following materials is diamagnetic? (a) aluminum (c) copper (b) iron (d) none of the choices Q5. The relative permeability has the following units (a) F/m (c) H/m (b) Wb/m (d) dimensionless Q6. A conductor of length L has current / passing through it, when it is placed parallel to a magnetic field. The force experienced by the conductor will be (a) zero (c) BLI (b) B'LI (d) BLI