A coil with an inductance of 1.6 H and a resistance of 8.0 Q is suddenly connected to an ideal battery with ɛ = 150 V. At 0.15 s after the connection is made, what is the rate at which (a) energy is being stored in the magnetic field, (b) thermal energy is appearing in the resistance, and (c) energy is being delivered by the battery? (a) Number Units (b) Number i Units (c) Number i Units
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- A 9.1-V battery, a 5.08- resistor, and a 11.0-H inductor are connected in series. After the current in the circuit has reached its maximum value, calculate the following. (a) the power being supplied by the battery W (b) the power being delivered to the resistor W (c) the power being delivered to the inductor W (d) the energy stored in the magnetic field of the inductorIn the figure, R = 11.0 Ω, C = 6.82 μF, and L = 54.0 mH, and the ideal battery has emf = 32.0 V. The switch is kept in position a for a long time and then thrown to position b. What are the (a) frequency and (b) current amplitude of the resulting oscillations?A 1.80-H inductance coil and a 11.2 2 resistor are connected in series with a battery whose emf is 115 V and a switch. Initially, the switch is open. At t = 0, the switch is closed. (a) Determine the rate at which energy is stored in the magnetic field at t = 0.170 s. 94.93 x At what rate is energy stored in the magnetic field at the given time? W (b) Determine the rate at which thermal energy is dissipated through the resistance at t = 0.170 s. W (c) Determine the rate at which the battery delivers energy at t = 0.170 s. W
- A 9.00 - V battery is connected to a coil which has a self-inductance of 125 mH and a resistance of 5.00 Ω. At what rate is energy being stored in the magnetic field of the coil when the current in the circuit is 0.500 Amps? Hint: Apply conservation of energy.A generator uses a coil that has 370 turns and a 0.49-T magnetic field. The frequency of this generator is 60.0 Hz, and its emf has an rms value of 120 V. Assuming that each turn of the coil is a square (an approximation), determine the length of the wire from which the coil is made. B N Number Units SA 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?
- At t = 0, an emf of 420 V is applied to a coil that has an inductance of 0.780 H and a resistance of 30.0 2. (a) Find the energy stored in the magnetic field when the current reaches half its maximum value. (b) After the emf is connected, how long does it take the current to reach this value? msAt what speed must a sliding rod move to produce an emf of 1.05 V in a 1.54 T field, given the rod's length is 30.3 cm? m/s