9. A flat circular coil with 90 turns, a radius of 4.50 x 10-2 m, and a resistance of 0.300 N is exposed to an external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is changing at a rate of AB/At = 0.779 T/s. Find the induced current in the coil. A

9. A flat circular coil with 90 turns, a radius of 4.50 x 10-2 m, and a resistance of 0.300 N is exposed to an external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is changing at a rate of AB/At = 0.779 T/s. Find the induced current in the coil. A

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

1.A 33-turn circular coil of wire has diameter 0.97 m. It is placed with its axis along the direction of the Earth's magnetic field of 53.0 µT and then in 0.200 s is flipped 180°. An average emf of what magnitude is generated in the coil?
A conducting wire loop of radius 12 cm, that contains a 4.0-2 resistor, is in the presence of a uniform magnetic field of strength 3.0 T that is perpendicular to the plane of the loop. If the magnetic field is turned off in a time of 0.50 s, what is the current induced in the loop? a. 52 mA b. 68 mA O c. 95 mA d. 117 mA O e. 168 mA
5. A rectangular loop of wire (length L-13.0 cm and width W=7.80 cm) is moving as shown in the drawing with a speed of 1.00 m/s. The loop is leaving a region in which a 2.80 T magnetic field exists; the magnetic field outside this region is zero. During a time of 0.13 s, what is the magnitude of the change in the magnetic flux? X 0.0284Wb 109 33.269 80 F2 ост 11 Q F5 F5 XXXX XXXXXXX XXXXXXXXX XXXXXxxxxx XXXXXxxxx X: x x x x x xxxx XXXXXXXXX F6 tv MacBook Air & С F6 A AA F7 DII F8 V DII FB СС F9 A F9 Show my other submissions 9 F10 W . F10 d) F11 P 4 F11 F12
1. Find the magnetic flux at time t=0? A. Zero Wb B. 0.1 Wb C. 0.05 Wb D. 1 Wb
10. A coil of 50 turns and area 0.5 m^2 is in magnetic field of induction 2 x 10 -3 Wb/m^2. If the coil is reversed in time of 10.0 ms, what is the e.m.f. induced in the coil? Oa.0.1 V Ов. 10v
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.com
A 40 turn circular coil (radius = 4.0 cm, total resistance = 0.20 Q) is placed in a uniform magnetic field directed perpendicular to the plane of the coil. The magnitude of the magnetic field varies with time as given by B = 100 sin(10 Tit) mT where t is measured in s. What is the magnitude of the induced current in the coil at 0.07 s? а. 1.85 А O b. 3.21 A О с. 1.57 А O d. 2.55 A O e. 0 A
A 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
An 44-turn coil has square loops measuring 0.353m along a side and a resistance of 4.1902. It is placed in a magnetic field that makes an angle of 48.9° with the plane of each loop. The mannitude of this field varies 3 with time according to B = 2.85t, where t is measured in seconds and B in teslas. What is the induced current in the coil at t = 1.79s ? An 11-tum coll has square loops measuring 0.353 m along a side and a resistance of 1.19 12. It is placed in a magnetic field that makes an angle of 18.9° with the plane of each loop. The magnitude of this field varies with time according to B-2.8513, where is measured in seconds and 8 in teslas. What is the induced current in the coil at -1.79 ?
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. 16.00
.A circular coil has 250 turns and radius 1.50 cm. When a current of 5.00 A flows in the coil, the magnetic flux density produced inside the coil is 0.050 T. What is the value of the self inductance of the coil? A. 0.589 mH C. 1.85 mH B. 1.18 mH D. 2.36 mH
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.