Multiple-Concept Example 2 discusses the concepts that are used in this problem. In the drawing the magnetic field has a magnitude of 1.75 T, the rod has a length of 0.897 m, and the hand keeps the rod moving to the right at a constant speed of 3.54 m/s. If the current in the circuit is 0.0487 A, what is the average power being delivered to the circuit by the hand? Number N X X X X X X X X X Z Units X X X X X X x Fhand X X X X XE X X X X X- X X Fhand X X B

In the figure (Figure 1) a conducting rod of length L = 31.0 cm moves in a magnetic field B of magnitude 0.480 T directed into the plane of the figure. The rod mc with speed v = 5.30 m/s in the direction shown. Figure X X X X X b X χαχ X X 1 of 1 X X X What is the potential difference between the ends of the rod? Express your answer in volts. NO | ΑΣΦΑ ▼ V = Submit Part B Which point, a or b, is at higher potential? b Submit Part C Request Answer E = Submit Request Answer When the charges in the rod are in equilibrium, what is the magnitude of the electric field with Express your answer in volts per meter. VG ΑΣΦΑ V Request Answer V/m

The two conducting rails in the drawing are tilted upward so they each make an angle of 30.0° with respect to the ground. The vertical magnetic field has a magnitude of 0.040 T. The 0.29-kg aluminum rod (length - 1.6 m) slides without friction down the rails at a constant velocity. How much current flows through the rod? Number i Conducting Units 16m-

Please solve the question correctly and also be sure to give the correct units. Thank you!

A piece of copper wire has a resistance per unit length of 5.12 × 10-3/m. The wire is wound into a thin, flat coil of many turns that has a radius of 0.149 m. The ends of the wire are connected to a 12.0-V battery. Find the magnetic field strength at the center of the coil.

A piece of copper wire has a resistance per unit length of 5.40 × 10³/m. The wire is wound into a thin, flat coil of many turns that has a radius of 0.118 m. The ends of the wire are connected to a 12.0-V battery. Find the magnetic field strength at the center of the coil. Number Units

When operated on a household 110.0 V line, typical hair dryers draw about 1450 W of power. The current can be modeled as a long, straight wire in the handle. During use, the current is about 2.25 cm from the user's hand. What is the current in the hair dryer? 13.2 A What is the resistance of the hair dryer? 8.41 Ω What magnetic field does the hair dryer produce at the user's hand? The permeability of free space is Ho = 47 × 10-' N/A?. 1.1 x10¬4 Incorrect

The loop in the figure is being pushed into the 0.20 T magnetic field at 45 m/s . The resistance of the loop is 0.50 N. (Figure 1) You may want to review (Pages 849 - 851) . Figure 1 of 1 V В 5.0 cm

An astronaut is connected to her spacecraft by a 29-m-long tether cord as she and the spacecraft orbit Earth in a circular path at a speed of 4.1  103 m/s. At one instant, the voltage measured between the ends of a wire embedded in the cord is measured to be 0.44 V. Assume the long dimension of the cord is perpendicular to the vertical component of Earth's magnetic field at that instant. (a) What is the magnitude of the vertical component of Earth's field at this location? uT(b) Does the measured voltage change as the system moves from one location to another? Explain.

Multiple-Concept Example 2 discusses the concepts that are used in this problem. In the drawing the magnetic field has a magnitude of 1.59 T, the rod has a length of 0.756 m, and the hand keeps the rod moving to the right at a constant speed of 4.51 m/s. If the current in the circuit is 0.0532 A, what is the average power being delivered to the circuit by the hand? 4 X X x- X X X X X XV x X X x X Fond X x Number i X X X T Units X T X ➜ hand X