What is the relationship between Earth's temperature and the number of sunspots that occur? An increased number of sunspots causes an increase in Earth's temperature.
A decreased number of sunspots causes an increase in Earth's temperature.
An increased number of sunspots causes Earth's temperature to remain constant.
A decreased number of sunspots causes Earth's temperature to remain constant.

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.