How would you describe the magnetic field produced by a current in a straight wire?
a. the lines of force run parallel to the wire
b. the lines of force run perpendicular to the wire
c. the lines of force run circles around the wire

Aspectroscope breaks light up into its colors, allowing scientists to analyze light from the solar system and universe. by studying the spectral line patterns, widths, strengths and positions, scientists can determine the speed, position, and of celestial bodies. a) age b) origin c) rotation d) temperature