A flat coil of wire has an inductance of 40.0 mH and a resistance of 5.80 N. It is connected to a 18.0-V battery at the instant t = 0. Consider the moment when the current is 3.20 A. (a) At what rate is energy being delivered by the battery? 18.69 W Recall that potential difference is defined as the energy per unit charge and that current is defined as the charge per time. (b) What is the power being delivered to the resistance of the coil? 18.56 X W If you know the current in a resistor you also know the potential difference across the resistor from Ohm's law. How do you determine the power delivered to the resistor from this informa (c) At what rate is energy being stored in the magnetic field of the coil? W

A flat coil of wire has an inductance of 40.0 mH and a resistance of 5.80 N. It is connected to a 18.0-V battery at the instant t = 0. Consider the moment when the current is 3.20 A. (a) At what rate is energy being delivered by the battery? 18.69 W Recall that potential difference is defined as the energy per unit charge and that current is defined as the charge per time. (b) What is the power being delivered to the resistance of the coil? 18.56 X W If you know the current in a resistor you also know the potential difference across the resistor from Ohm's law. How do you determine the power delivered to the resistor from this informa (c) At what rate is energy being stored in the magnetic field of the coil? W

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

If the current in an inductor is tripled, by what factor is the stored energy multiplied?
An emf of 96.0 mV is induced in the windings of a coil when the current in a nearby coil is increasing at the rate of 1.20 A/s. What is the mutual inductance of the two coils?
A 1.61 H inductor and a 19.8 ohm resistor are connected in series and the circuit is connected to a 11.5 V battery. After the current stabilizes and is current, the battery is disconnected and bypassed to allow the circuit to discharge. What is the current in the circuit 122 ms after disconnecting the circuit from the battery?
If the current in an inductor is doubled, by what factor is the stored energy multiplied?
A loop of wire has a self-inductance of 5.5 mH. You pass a current of 9.0 Amps though the loop, and then drop the current to 0 at a contastant rate over 3.5 seconds. What is the EMF generated?
Suppose a large power plant generates electricity at 12.0 kV. Its old transformer once converted this voltage to 325 kV. The secondary coil of this transformer is being replaced so that its output can be 755 kV for more efficient cross-country transmission on upgraded transmission lines. V1= 325 kV V,= 755 kV (a) If the overall power output is 1000.0 MW and line resistance is 2.00 N, what was the power loss, in watts, in the old power lines which left the plant? Ploss,1 = b) If the overall power output is 1000.0 MW and line resistance is 2.00 Q, what is the power loss, in watts, in the new power lines which leave the plant? Ploss,2=
A dc motor with its rotor and field coils connected in series has an internalresistance of 2.00 Ω. When running at full load on a 120 V line, itdraws a 4.00 A current. What is the power delivered to the motor?
Time t < 0, the circuit is in DC Steady State. The switch is opened instantly at time t=0. When t<0, I₂ = 7 A, and I₃ = 9 A. R₁ = 5 Ω, R₂ = 4 Ω, and R₃ = 4 Ω. The solution for I₂ is I2 = I 0 e^ − R t / L. With several resistors in the circuit, the question is, what resistance do we use for R? Answer this question (in Ohms).
In a standard RLC circuit that we are looking at R = 0.075 Ω , L = 1.2 H and C = 1.6 F. The initial charge carries by the capacitor is Q0 = 0.045 C. The switch is closed at time t = 0. Calculate the value of Q, in coulombs, at time t = 1s.
A coil of 40 mH is crossed by a current of 2 A. The coil is connected to a resistance of 25 while the current is falling. (a) What is the time constant t of the circuit? (b) What is the current in the coil after a time of 1.6 ms? (c) What is the voltage across the resistor after 1.6 ms? (d) What is the voltage across the coil after 1.6 ms?
Your laptop has wireless communications connectivity, and you might even have a wireless keyboard or mouse. But there’s one wire you haven’t been able to get rid of yet—the power cord.Researchers are working on ways to circumvent the need for a direct electrical connection for power, and they are experiencing some success. Recently, investigators were able to use current flowing through a primary coil to power a 60 W lightbulb connected to a secondary coil 2.0 m away, with approximately 15% efficiency. The coils were large and the efficiency low, but it’s a start. The wireless power transfer system is outlined in Figure VI.2. An AC supply generates a current through the primary coil, creating a varying magnetic field. This field induces a current in the secondary coil, which is connected to a resistance (the lightbulb) and a capacitor that sets the resonance frequency of the secondary circuit to…
Consider a series RC circuit for which R = 2.00 MQ, C = 5.00 µF, and ɛ = 30.0 V. Find the current in the resistor 10.0 s after the switch is closed.