If you hear a higher pitch from a clarinet than from a saxophone, how do the frequencies of the sound waves from the clarinet compare to those of the saxophone? a - the saxophone’s waves have a higher frequency than the clarinet. b - the clarinet’s waves have a higher frequency than the saxophone. c - the frequencies are the same; the difference is due to the horn. d - not enough information.

We will use a video to study faraday’s law of electromagnetic induction by analyzing the induction that occurs due a coil of copper wire sliding along an air track that passes through an external magnetic field. specifically, we will: examine some of the main principles behind faraday’s law. apply lenz’s law to determine the direction of the induced emf. take measurements of the induced emf from the voltmeter as the coil passes into and out of the external magnetic field. use the horizontal scale provided to determine the speed of the coil. calculate the magnetic field induced in the coil as it passes into and out of the external magnetic field.