rectangular loop a current i flows in a rectangular loop of wire placed on the y plane and centered about the origin. the length of the two sides are a and b (a) find the magnetic field at any location (0,0, 2) on the z-axis. (b) for za, b, what does your expression simplify to? (c) compare your answer to (b) with the on-axis field for a circular loop at distances much greater than the loop radius z. three parallel wires consider three co-planar equally-spaced (by distance d) parallel wires of negligible radius. each wire carries current i, a in the same direction (a) where does the magnetic field vanish? (b) sketch the magnetic field nes in the plane perpendicular to the current flow e) suppose you displace the middle wire a sinall distance δ in a direction perpendicular to the plane containing the wires and then release it. analyze and describe the resulting motion of the middle wire

While studying chemical reactions and conservation of matter, sarah's class conducted a variety of experiments. sarah and her lab partner found the mass of a wax candle and placed the candle in a flask. the students lit the candle and let it burn to completion. all that was left was wax and charred candle wick. per their teacher's instructions, the students found the mass of the products. their data can be seen in the data table. formulate a hypothesis the students could test to explain why the experiment did not support the law of conservation of matter. a) the students could repeat the experiment using different candles; there might have been a flaw in the candle. b) the experiment should be repeatable. the students should run several trials and then take an average of the after mass in each trial. c) the students should have someone in the class check their measurement skills as they repeat the experiment. they may have made an error using the balance. d) the students should burn the candle in a container that has some type of lid so that any gas that is a product of the reaction can be contained and massed. submit