A bicycle generator rotates at 127 rad/s, producing a 15.5 V peak emf. It has a 1.00 by 3.00 cm rectangular coil in a 0.66 T field. How many turns are in the coil?
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A bicycle generator rotates at 127 rad/s, producing a 15.5 V peak emf. It has a 1.00 by 3.00 cm rectangular coil in a 0.66 T field. How many turns are in the coil?
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- A bicycle generator rotates at 1500 rad/s, producing an 21.0 V peak emf. It has a 1.30 by 3.50 cm rectangular coil in a 0.510 T field. How many turns are in the coil? Is this number of turns of wire practical for a 1.30 by 3.50 cm coil? No YesA bicycle generator rotates at 1875 rad/s, producing an 18.0 V peak emf. It has a 1.00 by 3.00 cm rectangular coil in a 0.640 T field. It is driven by a 1.60 cm diameter wheel that rolls on the outside rim of the bicycle tire. (a) What is the velocity of the bicycle if the generator’s angular velocity is1875 rad/s? (b) What is the maximum emf of the generator when the bicycle moves at 10.0 m/s, noting that it was 18.0 V under the original conditions? (c) If the sophisticated generator can vary its own magnetic field, what field strength will it need at 5.00 m/s to produce a 9.00 V maximum emf?A car generator turns at 390 rpm when the engine is idling. Its 296-turn, 5.04 cm by 7.99 cm rectangular coil rotates in an adjustable magnetic field so that it can produce sufficient voltage even at low rpms. What is the field strength needed to produce a 24.4 V peak emf? T
- The coil in a 60-Hz ac generator has an area of 3.0 x 10^-2m^2 and is rotated in a 0.12 T magnetic field. The coil has 125 turns. What is the peak output voltage of this generator?A generator has a 46-turn coil with an area of 0.07 m2 that turns at 25.0 rad/s in a 0.48 T magnetic field. What is the current through the coil when the normal to the coil makes an angle of 30o with the magnetic field? The resistance in the coil is 7.84 Ohms. Give your answer in Amperes.A car generator turns at 400 rpm when the engine is idling. Its 300 turn, 5.1 cm by 8.15 cm rectangular coil rotates in an adjustable magnetic field so that it can produce sufficient voltage even at low rpms. What is the field strength (in T) needed to produce a 27 V peak emf?
- A 65 turn, 10.0 cm diameter coil rotates at an angular velocity of 8.00 rad/s in a 1.30 T field, starting with the normal of the plane of the coil perpendicular to the field. Assume that the positive max emf is reached first. a. What (in V) is the peak emf? b. At what time (in s) is the peak emf first reached? c. At what time (in s) is the emf first at its most negative? d. What is the period (in s) of the AC voltage output?The primary coil of a transformer has 329 turns; the secondary coil has 1000 turns. An alternating current is sent through the primary coil. The emf in the primary is of amplitude 10.2 V. What is the emf amplitude in the secondary?A 140-turn circular coil has diameter 5.0 cm . A magnetic field perpendicular to the coil is changing at 0.85 T/s . Can you help in conceptually understanding how to figure out the induced emf in the coil?
- A bicycle generator rotates at 1550 rad/s, producing an 18.0 V peak emf. It has a 1.00 cm by 3.00 cm rectangular coil in a 0.624 T field. (a) How many turns are in the coil? _____ turns (b) Is this number of turns of wire practical for a 1.00 cm by 3.00 cm coil? YesNoA 2. A flat coil is wrapped with 200 turns of very thin wire on a square frame with sides 18 cm long. A uniform magnetic field is applied perpendicular to the plane of the coil. If the field changes uniformly from 0.50 T to 0.00 T in 8.0 s, find the emf induced in the coil. a) 2.1 mV b) 4.1 mV c) 0.21 V d) 0.41 V W S E R F T G 20 H K OA 75 turn, 10.0 cm diameter coil rotates at an angular velocity of 8.00 rad/s in a 1.40 T field, starting with the normal of the plane of the coil perpendicular to the field. Assume that the positive max emf is reached first. a)What (in V) is the peak emf? b) At what time (in s) is the peak emf first reached? c) At what time (in s) is the emf first at its most negative? and d) What is the period (in s) of the AC voltage output?