23. I A 1.41 m bar moves through a uniform, 1.20 T magnetic field with a speed of 2.50 m/s. For each case in Figure 21.570, find the emf induced between the ends of this bar, and identify which, if either, end (L or R) is at the higher potential. Figure 21.57 y O (a) y (b) y L ● L ● R R ↑R -X X
Q: Calculate the maximum emf induced ( in units of mV) in the coil by this field.
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Q: 4
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- A helicopter (see figure below) has blades of length 2.80 m; extending out from a central hub and rotating at 3.40 rev/s. If the vertical component of the Earth's magnetic field is 50.0 μT, what is the magnitude of emf induced between the blade tip and the center hub? mV Sascha Hahn/Shutterstock.comI need the answer as soon as possibleA 100-turn square coil of side 20.0 cm rotates about a vertical axis at 4.9 x10° rev/min as indicated in the figure. The horizontal component of the Earth's magnetic field at the coil's location is equal to 2.00 x 10-5T. Calculate the maximum emf induced ( in units of mV) in the coil by this field. 20.0 cm 20.0 cm Select one: A. 11.43 B. 3.92 C. 16.33 D. 2.61 E. 6.53
- Calculate the Hall voltage induced on a patient's heart while being scanned by an MRI unit. Approximate the conducting path on the heart wall by a wire 8.00 cm long that moves at 10.0 cm/s perpendicular to a 1.45 T magnetic field. mV3. A metal rod of length L is placed in the circular region of uniform magnetic field B. B increases as a function of time B=B,t , as the drawing shows. Find the emf induced in the rod. A В Lcan 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 100-turn square coil of side 20.0 cm rotates about a vertical axis at 4.8 ×103 rev/min as indicated in the figure. The horizontal component of the Earth's magnetic field at the coil's location is equal to 2.00 x 10 5T. Calculate the maximum emf induced ( in units of mV) in the coil by this field. 20.0 cm 20.0 cm Select one: A. 3.84 B. 2.56 C. 6.40 D. 11.20 E. 16.00A 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 V
- 4. A 12-cm by 5.0-cm rectangular loop consisting of 15 turns of 1.0-mm diameter copper wire is normal to a uniform magnetic field that is initially 24 mT into the page. X X #3 X X X X X X x X X x x A CCW current is induced in the loop, and this current begins at 4.6 mA and increases linearly to 5.9 mA after 2.0 s. Calculate the magnetic field 5.0 s later.с A 50-turn coil has diameter of 19 cm. The coil is placed in a spatially uniform magnetic field of magnitude 0.75 T so that the face of the coil and the magnetic field are perpendicular. Find the magnitude of the voltage induced in the coil if the magnetic field is reduced to zero uniformly in (a) 0.10 s, (b) 1.0 s, and (c) 60 s. Hint a. Induced voltage is b. Induced voltage is c. Induced voltage is Submit Question 4 % V as magnetic field is reduced to zero in 0.10 s. V as magnetic field is reduced to zero in 1.0 s. V as magnetic field is reduced to zero in 60 s. Search or type URL 5 MacBook Pro 6 & 7 * 8 9In 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