A coil with 367 turns of wire, a total resistance of 49 2, and a cross-sectional area of 0.33 m is positioned with its plane perpendicular to the field of a powerful electromagnet. 2 What average current is induced in the coil during the 0.39 s that the magnetic field drops from 2.5 T to 0.0 T? Answer in units of A
Q: The bolt of lightnin; 133-turn coil orientec in the lightning bolt
A: Givend=100 mN=133 turnsChange in current, dI=5.22×106 Adt=10.9 μs=10.9×10-6 sr=0.881 m
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- Q8.5 A circular plastic core is wrapped with a 22.0 m-long copper wire, with a diameter of 0.0200 mm and resistivity of 1.68×10-8 9-m, coiled 88 times, and its ends are linked to create a closed circuit. A magnetic field that increases at a constant rate of 12.0 mT/s, parallel to the coil's axis. Calculate the rate at which the wire produces thermal energy6. The conducting rod shown in the accompanying figure moves along parallel metal rails that are 25-cm apart. The system is in a uniform magnetic field of strength 0.75 T, which is directed into the page. The resistances of the rod and the rails are negligible. a. What is the emf (including its sense) induced in the rod when it is moving to the right with a speed of 5.0 m/s? b. What force is required to keep the rod moving at this speed? c. What is the rate at which work is done by this force? d. What is the power dissipated in the resistor? B x M x x t x 25 cm 5.0 m/s 0.25 N * N27.46 A coil with magnetic moment 1.45 Amp-meter2 is oriented initially with its magnetic moment antiparallel to a uniform 0.835-T magnetic field. What is the change in potential energy of the coil when it is rotated 180 degrees so that its magnetic moment is parallel to the field?
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- Q. What are the values of (a) L and 5. The secondary coil of a step-up transformer provides the voltage that operates an electrostatic air filter. The turns ratio of the transformer is 50:1. The primary coil is plugged into a standard 120-V outlet. The current in the secondary coil is 1.7 x 103 A. Find the power consumed by the air filter. 6. The earth's magnetic field, like any magnetic field, stores energy. The maximum strength of theDon't use chat gpt