An electric generator contains a coil of 100 turns of wire, each forming a rectangular loop 50.0 cm by 30.0 cm. The coil is placed entirely in a uniform magnetic field with magnitude B = 3.50 T and initially perpendicular to the coil's plane. The coil is rotated with an angular speed of 100 rev/min about an axis perpendicular to B. The total resistance is 100 N. What is the magnetic torque acting on the coil when the induced emf is zero. %3D
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- A circular coil of radius 5.0 cm and resistance 0.20 Ω is placed in a uniform magnetic field perpendicular to the plane of the coil. The magnitude of the field changes with time according to B =50e-0.2tT. What is the magnitude of the current induced in the coil at the time t = 2.0 s? Answer: 2.6 mAA conducting rod is free to slide on two parallel conducting bars. A resistor is connected to the end of the bar. The conducting bar and the rod have negligible resistance. A constant magnetic field is directed perpendicularly into the page. The power dissipated in the resistor is 64 W. The constant speed of the rod is v=8.00 m/s. Find the magnitude of the applied force that is needed to move the rod with this constant velocity. Give your answer in N. İletken bir çubuk iletken raylar üzerinde serbestçe kayabilmektedir. Rayların ucuna R direnci bağlanmıştır ve çubuk ile rayların dirençleri ihmal edilebilecek kadar küçüktür. Sayfa düzleminden bize doğru düzgün manyetik alan uygulanmaktadır. Dış bir kuvvet ile çubuk sola doğru sabit v=8,00 m/s hızıyla çekilirken dirençte harcanan güç 64 W olmaktadır. Hızın sabit olması için gerekli dış kuvvetin büyüklüğü N cinsinden nedir? B R VAn electric generator contains a coil of 130 turns of wire, each forming a rectangular loop 71.3 cm by 35.4 cm. The coil is placed entirely in a uniform magnetic field with magnitude B = 4.29 T and initially perpendicular to the coil's plane. What is in volts the maximum value of the emf produced when the loop is spun at 1120 rev/min about an axis perpendicular to the magnetic field?
- A circular coil with 65 turns and radius 18.0 cm is placed around an electromagnet that produces a uniform magnetic field through the coil and perpendicular to the plane of the coil. As the electromagnet powers up, the field it produces increases linearly from 0 to a maximum of 3.50 T in 0.120 s. If the total resistance of the coil is 5.00 0, what is the magnitude of the average current induced in the circular coil as the electromagnet powers up?A conducting rod is free to slide on two parallel conducting bars. A resistor is connected to the end of the bar. The conducting bar and the rod have negligible resistance. A constant magnetic field is directed perpendicularly into the page. The power dissipated in the resistor is 64 W. The constant speed of the rod is v=8.00 m/s. Find the magnitude of the applied force that is needed to move the rod with this constant velocity. Give your answer in N. The answer is integer.A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.87 V and a current of 3.8 A are induced in the coil. The wire is then re-formed into a single-turn square coil, which is used in the same magnetic field (again perpendicular to the plane of the coil and with a magnitude changing at the same rate). What (a) emf and (b) current are induced in the square coil? (a) Number Mi Units (b) Number eTextbook and Media Hint Units
- An electric generator contains a coil of 100 turns of wire, each forming a rectangular loop 50.0 cm by 30.0 cm. The coil is placed entirely in a uniform magnetic field with magnitude B = 3.50 T and initially perpendicular to the coil's plane. The coil is rotated with an angular speed of 100 rev/min about an axis perpendicular to B. The total resistance is 100 2. What is the total magnetic force acting on the coil when the induced emf is maximum.A loop of wire of radius a = 35 mm has an electrical resistance R = 0.038 Ω . The loop is initially inside a uniform magnetic field of magnitude B0 = 1.8 T parallel to the loop's axis. The magnetic field is then reduced slowly at a constant rate, which induces a current I = 0.20 A in the loop. How long does it take for the magnitude of the uniform magnetic field to drop from 1.8 T to zero? Find the time Δt it takes the magnetic field to drop to zero.A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.87 V and a current of 4.7 A are induced in the coil. The wire is then re-formed into a single-turn square coil, which is used in the same magnetic field (again perpendicular to the plane of the coil and with a magnitude changing at the same rate). What (a) emf and (b) current are induced in the square coil? (a) Number i Units (b) Number i Units >
- A single coil of wire, with a radius of 0.17 m is rotated in a uniform magnetic field such that the angle between the field vector and the area vector obeys 0 = wt. 1.26 s? If the strength of the field is 3.492 T, and the angular frequency is 545.1 rad/s, what is the induced emf in the loop at t = 0.05188 VAn electric generator contains a coil of 100 turns of wire, each forming a rectangular loop 50.0 cm by 30.0 cm. The coil is placed entirely in a uniform magnetic field with magnitude B = 3.50 T and initially perpendicular to the coil's plane. The coil is rotated with an angular speed of 100 rev/min about an axis perpendicular to B. The total resistance is 100 N. What is the magnetic torque acting on the coil when the induced emf is zero. Bir elektrik jeneratörü, her biri 50,0 cm'ye 30,0 cm'lik dikdörtgen halkalardan oluşan100 sarımlı bir bobin içerir. Bobin, B = 3,50 T büyüklüğünde ve başlangıçta bobinin tamamı, bobinin düzlemine dik düzgün bir manyetik alana yerleştirilmiştir. Bobin, B alanına dik bir eksen etrafında 100 devir/dakika açısal süratle döndürülmektedir. Toplam direnç 100 N'dur. Üretilen emk sıfır olduğunda bobine etki eden manyetik tork nedir?A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.22 V and a current of 4.3 A are induced in the coil. The wire is then re-formed into a single-turn square coil, which is used in the same magnetic field (again perpendicular to the plane of the coil and with a magnitude changing at the same rate). What (a) emf and (b) current are induced in the square coil? (a) Number i (b) Number i Units Units