Two concentric loops are shown in the figure below. If the current in the big loop is constant, the induced current in the small loop is: X Ⓒ O Clockwise Counter Clockwise O The induced current is zero The given is not sufficient to find the direction of the current.
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- A voltage generated by moving a magnet in a coil of wire is called "induced voltage." True O FalseThe magnetic flux through the loop increases according to the relation shown below. What is the magnitude of the induced emf in the loop when t = 3.0 sInduced EMF Below is a closed conducting loop within a magnetic field (for direction see picture). The loop is a circle with a radius of r = 5.00 cm. The magnetic field is decreasing in the direction shown at a rate of dB/dt = 157.0 mT/s. The circle wire has 305.0 loops around it. The wire has a total resistance of R = 2.80 Ohms. Magnetic Field (into the page) 8) What is the induced current around the wire in this system? (use a negative value for a clockwise current) Make sure to give your answer in an appropriate number of significant figures as well as including units with your answer. Your Answer: Answer units PLEASE TAKE OUT TRASH AT EOS IG
- Suppose the magnetic flux through a loop of wire increases by 25 T*m^2 in time At, and the induced current around the loop is 39 A. (The resistance of the wire is 2.5 ohm.) Determine the time At. (in s) OA: 0.100 OB: 0.117 OC: 0.137 OD: 0.160 OE: 0.187 OF: 0.219 OG: 0.256 OH: 0.300The figure shows a uniform magnetic field that is normal to the plane of the conducting loop of resistance R. Note: the area of the non- circular portion of the circuit is negligible compared to that of the loop. B 04 Which entry in the table below correctly pairs the change in the system with the direction of the induced current through R? change in the system direction of current through R decrease the area of the loop rotate loop into the paper decrease the magnitude of B increase the area of the loop pull loop to the right from top toward bottom no induced current from bottom toward top from bottom toward top from top toward bottomProblem 2. An a by b loop is pulled in the x- direction with the velocity v relative to a straight wire with a constant current I, see figure. Find the force that the wire produces on the loop. I b R пи ν 0 I ४ a x + a
- As shown below, a wire loop with a radius of 0.84 m is immersed in a B-field (the direction of the field is shown in the diagram). The B-field decreases from 10 T to 6 T and as a result a 8 V voltage & a 8.1 A current are induced. Determine how long the B-field was changing & the loop's resistance. At = the loop's resistance = ΩProblem 7: Part (a) Express the current induced in the loop, I, in terms of ε and R. I = ______ Part (b) Calculate the value of I, in amperes. I = ______