A magnetic field is uniform over a flat, horizontal circular region with a radius of 1.70 mm, and the field varies with time. Initially, the field is zero and then changes to 1.50 T, pointing upward when viewed from above, perpendicular to the circular plane, in a time of 150 ms.(a) What is the average induced emf around the border of the circular region? (Enter the magnitude in μV and the direction as seen from above.)- Magnitude: [Blank space to enter value] μV- Direction: [Dropdown menu for selection] as seen from above(b) Immediately after this, in the next 50.0 ms, the magnetic field changes to a magnitude of 0.500 T, pointing downward when viewed from above. What is the average induced emf around the border of the circular region over this time period? (Enter the magnitude in μV and the direction as seen from above.)- Magnitude: [Blank space to enter value] μV- Direction: [Dropdown menu for selection] as seen from above(Note: There are no graphs or diagrams present in the image.)

Answered: Image /qna-images/answer/355bfb1d-4400-4725-a228-e2b14b7791f6.jpg

A magnetic field is uniform over a flat, horizontal circular region with a radius of 1.70 mm, and the field varies with time. Initially the field is zero and then changes to 1.50 T, pointing upward when viewed from above, perpendicular to the circular plane, in a time of 150 ms. (a) What is the average induced emf around the border of the circular region? (Enter the magnitude in µV and the direction as seen from above.) magnitude µV direction ---Select--- as seen from above (b) Immediately after this, in the next 50.0 ms, the magnetic field changes to a magnitude of 0.500 T, pointing downward when viewed from above. What is the average induced emf around the border of the circular region over this time period? (Enter the magnitude in µV and the direction as seen from above.) magnitude μν direction ---Select--- as seen from above

A magnetic field is uniform over a flat, horizontal circular region with a radius of 1.70 mm, and the field varies with time. Initially the field is zero and then changes to 1.50 T, pointing upward when viewed from above, perpendicular to the circular plane, in a time of 150 ms. (a) What is the average induced emf around the border of the circular region? (Enter the magnitude in µV and the direction as seen from above.) magnitude µV direction ---Select--- as seen from above (b) Immediately after this, in the next 50.0 ms, the magnetic field changes to a magnitude of 0.500 T, pointing downward when viewed from above. What is the average induced emf around the border of the circular region over this time period? (Enter the magnitude in µV and the direction as seen from above.) magnitude μν direction ---Select--- as seen from above

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

A circular loop of wire of radius 13.0 cm is placed in a magnetic field directed perpendicular to the plane of the loop as shown in the figure below. If the field decreases at the rate of 0.044 0 T/s in some time interval, find the magnitude of the emf induced in the loop during this interval. mv A В
The 5-cm by 8-cm rectangular coil of a bicycle generator is rotating at a rate of 125 rpm in a 255-mT magnetic field. The output voltage of the generator is used to power a bicycle headlight that has a total resistance of 360 N. (a) How many turns are there in the coil if the peak output voltage is 1.8 V? N = turns (b) What is the rms-average current through the headlight? Irms mA
A magnetic field is uniform over a flat, horizontal circular region with a radius of 1.70 mm, and the field varies with time. Initially the field is zero and then changes to 1.50 T, pointing upward when viewed from above, perpendicular to the circular plane, in a time of 110 ms. (a) What is the average induced emf around the border of the circular region? (Enter the magnitude in uV and the direction as seen from above.) magnitude HV direction ---Select-- v as seen from above (b) Immediately after this, in the next 70.0 ms, the magnetic field changes to a magnitude of 0.500 T, pointing downward when viewed from above. What is the average induced emf around the border of the circular region over this time period? (Enter the magnitude in uV and the direction as seen from above.) magnitude direction ---Select-- v as seen from above
In the figure, a wire loop of dimensions L = 42.1 cm and W = 25.2 cm lies in a magnetic field. What are the (a) magnitude 8 and (b) direction (clockwise or counterclockwise-or "none" if & = 0) of the emf induced in the loop if B = (4.00 x 10-2 T/m)yk? What are (c)8 and (d) the direction if B = (6.00 x 10-2 T/s)tk? What are (e) and (f) the direction if B = (8.14 x 10-2 T/m-s)ytk? What are (g) 8 and (h) the direction if B = (3.21 x 10-2 T/m-s)xt j? What are (i) and (i) the direction if B = (5.00 x 10-2 T/m-s)yti? W
A 290-turn coil lies in the plane of the page in a uniform magnetic field of strength 7.80 T. The coil initially has an area of 0.125 m² and is stretched to have no area in 0.25 s. Find the magnitude (in V) of the average induced emf?
A rectangular coil of 80 turns has dimensions of 34 x 52 cmcm and is located in a uniform 2 TT magnetic field. In 0.9 ss, the plane of the coil is rotated from a position where it makes an angle of 40° with the magnetic field to a position where it makes an angle of 64°. Calculate the average emf induced in the coil.
A rectangular loop of area A=0.160 m is placed in a region where the magnetic field is perpendicular to the plane of the loop. The magnitude of the field is allowed to vary in time according to B=0.371e 2, where B is in teslas andtis in seconds. What is the value for induced emf ( in units of mV) at t= 4.5 s? Select one: OA. 1.64 O B. 6.26 OC 3.13 OD. 2.02 QE 387 Next page 直

A circular spiral of 200 turns and 12 cm in diameter is designed to rotate 90° in 0.2 s. Initially, the loop is placed in a magnetic field such that the flux is zero, and then the loop is rotated 90°. If the induced emf in the loop is 0.4 mV, what is the magnitude of the magnetic field?
R, in Part of a circuit is embedded inside a magnetic field B as showns above, where W= 26.0 cm, L= 18.0 cm, R, = 5.40 2, R2= 6.80 N, and R3 = 6.40 N. The magnetic field begins to increase linearly at a rate of 4.35 T/s. What is the induced emf? 1.13 V Ov 0.204 V EMF continually increases with increasing magnetic field.
A rectangular loop of area A=0.160 m2 is placed in a region where the magnetic field is perpendicular to the plane of the loop. The magnitude of the field is allowed to vary in time according to B=0.425e /2 where B is in teslas and t is in seconds. What is the value for induced emf ( in units of mV) at t= 4.5 s?
A rectangular loop of area A=0.160 m2 is placed in a region where the magnetic field is perpendicular to the plane of the loop. The magnitude of the field is allowed to vary in time according to B=0.384et/2, where B is in teslas andt is in seconds. What is the value for induced emf ( in units of mV) at t= 4.5 s?
(d) Calculate the magnitude of torque (in Nm) exerted by the magnetic field on the coil at the instant when the emf is a maximum. N.m (e) What is the maximum power delivered to the coil (in W)? W (f) What If? If the coil is constructed from aluminum wire, what is the cross-sectional area of the wire (in m²)? The resistivity of aluminum is 2.82 x 10-8 Q. m. m² (g) What If? Suppose the coil now has the same number of turns, dimensions, and resistance, but the maximum current that the wire can now safely carry is 4.50 A. What now is the maximum angular speed (in rad/s) with which the coil can be rotated in the same 2.20 T magnetic field? rad/s