An inductor used in a dc power supply has an inductance of 11.0 H and a...

An inductor used in a dc power supply has an inductance of 11.0 H and a resistance of 130 Ω. It carries a current of 0.550 A. What is the energy stored in the magnetic field? At what rate is thermal energy developed in the inductor?

Part A

What is the energy stored in the magnetic field?

Part B

At what rate is thermal energy developed in the inductor?

Expert Solution

Part A) energy stored in the magnetic field = 1/2 * L * I²

= 1/2 * 11.0 * 0.550²

= 1.66375 J

Part B) rate is thermal energy developed in the inductor = I² R

= 0.550² * 130

= 39.325 W

genius_generous answered 1 year ago

An LC circuit has an inductor with inductance 0.05 H and a capacitor with capacitance 5...

An LC circuit has an inductor with inductance 0.05 H and a capacitor with capacitance 5 μF. All of the energy is stored in the capacitor at t=0, and the total charge is 3×10-5 C. (a) What is the angular frequency of the oscillations in this circuit? (b) Find a mathematic equation for q(t). (c) What is the maximum current flow through the circuit? (d) How long does it take the capacitor to become completely discharged?

You have a resistor of resistance 230 Ω , an inductor of inductance 0.410 H ,...

You have a resistor of resistance 230 Ω , an inductor of inductance 0.410 H , a capacitor of capacitance 6.50 μF and a voltage source that has a voltage amplitude of 35.0 V and an angular frequency of 220 rad/s . The resistor, inductor, capacitor, and voltage source are connected to form an L-R-C series circuit. 1.What is the impedance of the circuit? 2.What is the current amplitude? 3.What is the phase angle of the source voltage with respect...

An inductor in a switch-mode power supply that operates at a peak current of 8 A...

An inductor in a switch-mode power supply that operates at a peak current of 8 A needs to store 80 mJ of energy, thereafter release it to a 10 ? load resistor. Suppose this inductor had to be custom designed and built as a solenoid coil wound on a pencil (10 mm diameter) with no magnetic properties. Only one layer of turns is allowed on the pencil’s outer surface, and 0.1-mm diameter enamel coated wire has to be used. Answer...

A circuit consists of a large electromagnet that has an inductance of 52.0 H and a...

A circuit consists of a large electromagnet that has an inductance of 52.0 H and a resistance of 8.00 ?, a dc 270 V power source, and an open switch - all connected in series. A) How long after the switch is closed is the current equal to 10.5 A? B) How long after the switch is closed is the current equal to 31.9 A?

A resistor R = 475 Ohm and an inductor of L = 1.4 H are used...

A resistor R = 475 Ohm and an inductor of L = 1.4 H are used in and RL circuit to control the timing of some device. What time constant does this device exhibit? Question options: 2.9 ms 67 ms 39 ms 29 ms none of these Question A long wire carries a steady current of I = 5.5 A. What is the strength of the magnetic field 5.5 cm away from the wire? Question options: 5.5 x 10^-7 T...

a) A 50kW separately excited DC motor has armature resistance of 2.5W, armature inductance of 30mH...

a) A 50kW separately excited DC motor has armature resistance of 2.5W, armature inductance of 30mH and back e.m.f of 100V when the motor is fed from a buck converter with 250VDC input, 50Hz switching frequency and 50% duty cycle. Assuming continuous conduction and lossless converter, find out the maximum, minimum and ripple currents in armature. b) Determine the values of inductor and filter capacitor for a buck converter with following specifications: Input= 48V, output = 24V, Load curernt =...

These questions are about the relationship between AC current power supply and Inductance. Primary Coil (magnetic...

These questions are about the relationship between AC current power supply and Inductance. Primary Coil (magnetic field connected to source) Secondary Coil (magnetic field induced by the primary) 1. How does changing the frequency (length & height) of an AC power supply affect induced current on a secondary coil and why? 2. How does changing the distance between the primary and secondary coil affect induced current on the secondary coil and why? 3. How does reducing the number of loops...

A quality control engineer wishes to estimate the mean output voltage of a DC power supply...

A quality control engineer wishes to estimate the mean output voltage of a DC power supply for different loads. The engineer measures output voltage when the supply is connected to 11 different loads and computes a mean 98.4 V and standard deviation 7 V. Assume that the output voltages follow a normal distribution. (a) Construct and interpret the 99.9% confidence interval. (b) Construct and interpret the 90% prediction interval.

Design and simulate a DC power supply using Zener diodes to produce 15 V if you...

Design and simulate a DC power supply using Zener diodes to produce 15 V if you have two Zener diodes of Zener voltage 7.5 V when the dc link voltage 24 V. The assignment report should include the following information: Assignment objectives, introduction, design procedure, simulation with simulation results, and conclusion.

Design a power supply to deliver 4 to 9 Vdc adjustable voltage to control DC motor...

Design a power supply to deliver 4 to 9 Vdc adjustable voltage to control DC motor speed. Motor power at maximum load is 20W at maximum speed (maximum voltage). Supply is 12V car battery with 70Ah capacity. How long the battery will last at maximum load and maximum speed? Add a 13.8Vdc communications power supply to continuously charge the battery at 500mA.

Question