A single loop of copper wire, lying flat in a plane, has an area of 7.60 cm² and a resistance of 2.40 Q. A uniform magnetic field points perpendicular to the plane of the loop. The field initially has a magnitude of 0.500 T, and the magnitude increases linearly to 1.50 T in a time of 1.08 s. What is the induced current (in mA) in the loop of wire over this time? How does Faraday's law relate the change in flux per unit time to the emf? What are the initial and final flux values through the loop? How is the induced emf related to the resistance and induced current? Be careful of units-note the final answer should be expressed in mA. mA

A circular loop in the plane of the paper lies in a 0.60 T magnetic field pointing into the paper. The resistance of the coil is 1.55 Ω. If the loop's diameter changes from 20.5 cm to 9.00 cm in 0.40 s, what is the average induced current in milli-amps?

A circular loop of wire lies in a plane perpendicular to a magnetic field. The magnetic field has a magnitude of 1.3 T and points out of the page as shown in the figure. The radius of the loop is 18 cm and it has a resistance of 3.2 Ω. Find the induced emf in the loop of wire if the magnetic field doubles in magnitude in 1 seconds. What is the induced current in the loop? In which direction is the induced current?

A circular loop of wire with a radius of 4.0 cm is in a uniform magnetic field of magnitude 0.060 T. The plane of the loop is perpendicular to the direction of the magnetic field. In a time interval of 0.50 s, the magnetic field changes to the opposite direction with a magnitude of 0.040 T. What is the magnitude of the average emf induced in the loop?

c. What is the resistance of the coil given that the diameter of the wire is 2.00 mm? (Recall, resistance of wire is given by R = ρL/A, where ρ is the resistivity of the metal, L is the length of the wire, and A is the cross-sectional area.)

An L = 49.0 cm wire is moving to the right at a speed of v = 6.50 m/s across two parallel wire rails that are connected on the left side, as shown in the figure. The whole apparatus is immersed in a uniform magnetic field that has a magnitude of B = 0.770 T and is directed into the screen. What is the magnitude & of the emf induced in the wire? E= The induced emf causes a current to flow in the circuit formed by the moving wire and the rails. In which direction does the current flow around the circuit? counterclockwise clockwise If the moving wire and the rails have a combined total resistance of 1.35 92, what applied force F would be required to keep the wire moving at the given velocity? Assume that there is no friction between the moving wire and the rails. V F = N

A single loop of copper wire, lying flat in a plane, has an area of 7.20 cm2 and a resistance of 1.80 N. A uniform magnetic field points perpendicular to the plane of the loop. The field initially has a magnitude of 0.500 T, and the magnitude increases linearly to 1.50 T in a time of 1.12 s. What is the induced current (in mA) in the loop of wire over this time? 3.57 You may have neglected to convert units. Be sure to convert the area from cm2 to m2. Then, convert the current from A to mA. mA Need Help? Read It

A single loop of aluminum wire, lying flat in a plane, has an area of 7.60 cm² and a resistance of 2.70 2. A uniform magnetic field points perpendicular to the plane of the loop. The field initially has a magnitude of 0.500 T, and the magnitude increases linearly to 1.50 T in a time of 1.10 s. What is the induced current (in mA) in the loop of wire over this time? mA