The accompanying figure shows a conducting ring at various positions as it moves through a magnetic field. What is the sense of the induced emf for each of those positions? X X X X x 00:0:0 0 x X xx 100 B
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- The flexible loop in the figure below has a radius of 14.0 cm and is in a magnetic field of magnitude 0.180 T. The loop is grasped at points A and B and stretched until its area is nearly zero. If it takes 0.180 s to close the loop, what is the magnitude of the average induced emf in it during this time interval? mv Bwhat is correct answer?A magnet which generates 600 Maxwells of flux, is inserted through a coil of 1000 turns. It is then withdrawn within 0.15s. What is the voltage that appears across the coil? Choices: • 0.04 A • 0.04 V • 0.0533 V • 0.0533 A
- A maximum emf of 1.6 x 102 V is induced in a generator coil rotating where the field changes every 0.005 s. If the coil has an area of 0.095 m² and rotates in a magnetic field of 1.1 T, how many turns are in the coil? 04 O 45 O 15 O 3 O 12 FAC P PERHEDHESION DASDOMENPlease answer the question in the picture belowSuppose you have a long, skinny conductor that is oriented with its long axis parallel to a uniform magnetic field. Suppose also that the conductor is moving along its long axis in a straight line at constant velocity v. Despite the motion of the conductor, no motional emf is induced. Why? The magnetic field is too uniform The velocity has no component normal to the magnetic field The velocity is too low The conductor is so long and so thin that its electrical resistance is too high
- The flexible loop in the figure below has a radius of 12 cm and is in a magnetic field of strength 0.17 T. The loop is grasped at points A and B and stretched until its area is nearly zero. If it takes 0.25 s to close the loop, what is the magnitude of the average induced emf (in mV) in it during this time? @ |ε] = x x x X X mV X.AX A X XBOX X X x X *An oscillating LC circuit consisting of a 6.0 nF capacitor and a 2.0 mH coil has a maximum voltage of 4.0 V. What is the maximum energy stored in the magnetic field of the coil? 8 µJ 32 nJ O 16 nJ 48 µJ 32 µJ 48 nJ 8 nJ O 16 µJ O None of themcan i get an answer please?
- Determine the magnetic induction at point A in the figure for the conductor of electric current shown in the figure (uo = 4π x 10 -7 T x m / A).A segment of wire 7.4 cm long is moving at a velocity of 7.08 m/s toward a parallel (much longer) wire which carries a current of 7.55 A. At a particular instant the wire segment is 5.4 cm away from the long, current-carrying wire. What is the induced emf (voltage) between the two ends of the wire segment? 1.47E-05 V 5.88E-06 V 1.18E-05 V 1.91E-05 VIn each of two coils the rate of change of the magnetic flux in a single loop is the same. The emf induced in coil 1, which has 245 loops, is 2.51 V. The emf induced in coil 2 is 4.90 V. How many loops does coil 2 have? Number i 480 Units No units