You must show your work to obtain any points. 1. A rectangular loop of wire with dimensions 1.50cm by 8.00cm and resistance R = 0.600 2 is being pulled to the right out of a region of uniform magnetic field. The magnetic field has magnitude B = 3.50 T and is directed into the plane of figure, see below. At the instant when the speed of the loop is |v| = 3.00 m/s and it is still partially in the field region, what force (magnitude and direction) does the magnetic field exert on the [[ . A metal bar with length [ = 1.50 m is pulled to the right at a steady speed |v| = 5.0m/s perpendicular to a uniform magnetic field with magnitude 0.750 T. The bar rides on parallel metal rails connected through a resistor with resistance 25.0 Q, as shown in Figure below, so the apparatus makes a complete circuit. You can ignore the resistance of the bar and the rails. a) GCalculate the magnitude of the emf induced in the circuit. b) Find the direction of the current induced in the circuit. c) QCalculate the current through the resistor. B A metallic laboratory spring is typically 5.00 cm long and 0.150 cm in diameter and has 50 coils. If you connect such a spring in an electric circuit, how much self-inductance must you include for it if you model it as an ideal solenoid? A 35.0V battery with negligible internal resistance, a 50.0 Q2 resistor, and a 1.25 mH inductor with negligible resistance are all connected in series with an open switch. The switch is suddenly closed. a) How long after closing the switch will the current through the inductor reach one- half of its maximum value? b) How long after closing the switch will the energy stored in the inductor reach one- half of its maximum value