tudents use a strong permanent magnet to set up an experiment to study the magnetic force on a long, straight, current- carrying wire. The wire is held at rest above the permanent magnet. The students have several magnets so they can vary the magnetic field B and the current I in the wire. Which of the following errors would explain the results indicated? A The magnetic field created by the permanent magnet is less than experimentally indicated; thus, the magnetic force on the wire is opposite to the predicted direction. B The magnetic field created by the permanent magnet is less than experimentally indicated; thus, the magnetic force on the wire is less than predicted. с The current in the wire is less than experimentally indicated; thus, the magnetic force on the wire is opposite to the predicted direction. D The current in the wire is less than experimentally indicated; thus, the magnetic force on the wire is more than predicted. E The distance between the permanent magnet and the wire is less than experimentally indicated; thus, the magnetic force on the wire is less than predicted.