A generator has a 0.054 T magnetic field and a coil with 51 turns each with an area of 0.218 m2. At what angular velocity (in rad/s) would the generator have to rotate to generate 6,092 J of energy per hour? The resistance of the coil is 342 Ohms.
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- A bicycle generator rotates at 1,975 rad/s, producing a 17.5 V peak emf. It has a 46-turn, 1.00 by 3.00 cm rectangular coil in a 0.640 T field. It is driven by a 1.76 cm diameter wheel that rolls on the outside rim of the bicycle tire. (a) What is the velocity of the bicycle? (Enter the magnitude in m/s.) m/s (b) What is the maximum emf (in V) of the generator when the bicycle moves at 10.0 m/s, noting that it was 17.5 V under the original conditions? V (c) If the sophisticated geherator can vary its own magnetic field, what field strength (in T) will it need at 5.00 m/s to produce a 9.00 V maximum emf?A generator produces 21.0 V when turning at 890 rev/min. What emf does it produce when turning at 530 rev/min? VA transformer has exactly 600 turns on its primary and exactly 200 turns on its secondary. If a voltage of 100.0v is applied to the primary of a 0.250 A flows through the primary windings, then what is the voltage output of the secondary? Answer in V
- A plug-in transformer supplies 9.00 V to a video game system. (a) How many turns are in its secondary coil if its input voltage is 120 V and the primary coil has 423 turns? turns(b) What is its input current when its output is 1.33 A? AA 120V e.m.f is across a transformer's 200-turn primary coil. How many turns should a secondary coil have in order to produce a 30V e.m.f?A bicycle generator rotates at 1,800 rad/s, producing a 15.5 V peak emf. It has a 45-turn, 1.00 by 3.00 cm rectangular coil in a 0.640 T field. It is driven by a 1.48 cm diameter wheel that rolls on the outside rim of the bicycle tire. (a) What is the velocity of the bicycle? (Enter the magnitude in m/s.) m/s (b) What is the maximum emf (in V) of the generator when the bicycle moves at 10.0 m/s, noting that it was 15.5 V under the original conditions? V (c) If the sophisticated generator can vary its own magnetic field, what field strength (in T) will it need at 5.00 m/s to produce a 9.00 V maximum emf?
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