Q1: (a) A 0.750 m long section of cable carrying current to a car starter motor makes an angle of 60° with the Earth's magnetic field 5.50 × 10-5 T. What is the current when the wire experiences a force of 7.00 x 103 N? (b) If you run the wire between the poles of a strong horseshoe magnet, subjecting 5.00 cm of it to a 1.75 T magnetic field, what force is exerted on this segment of wire?

Q1: (a) A 0.750 m long section of cable carrying current to a car starter motor makes an angle of 60° with the Earth's magnetic field 5.50 × 10-5 T. What is the current when the wire experiences a force of 7.00 x 103 N? (b) If you run the wire between the poles of a strong horseshoe magnet, subjecting 5.00 cm of it to a 1.75 T magnetic field, what force is exerted on this segment of wire?