A circuit consists of a large electromagnet that has an inductance of 55.0 H and a resistance of 7.90 Ω, a dc 260 V power source, and an open switch - all connected in series.
A. How long after the switch is closed is the current equal to 11.7 A?
B. How long after the switch is closed is the current equal to 31.9 A
A circuit consists of a large electromagnet that has an inductance of 55.0 H and a...
Problem 28-64a: A circuit consists of a large electromagnet that has an inductance of 53.0 H and a resistance of 7.40 92, a dc 280 V power source, and an open switch - all connected in series. How long after the switch is closed is the current equal to 11.6 A? Submit Answer Tries 0/5 Problem 28-64b: How long after the switch is closed is the current equal to 31.7 A? Submit Answer) Tries 0/5
020 10.0 points A large electromagnet has an inductance of 50 H and a resistance of 6 S2. It is connected to a DC power source of 300 V Find the time for the current to reach 5 A 1. 0.395102 2. 6.10909 3. 3.26963 4. 4.46972 5. 0.406297 6. 0.878004 7. 4.25688 8. 1.44623 9. 4.82272 10. 3.20176 Answer in units of s.
An electromagnet can be modeled as an inductor in series with a resistor. Con- sider a large electromagnet ε of inductance L = 12.0 H and resistance R 4.50 Ω connected to a 24.0 V bat- tery and switch as in Figure After the switch is closed, find the time it takes the current to reach 90.0% of its maximum value. A In(20) seconds B. 8 In(10) seconds C. n(30) seconds 4 D. 9 In(20) seconds
An electric doorbell uses an electromagnet to pull on a steel hammer that rings the bell. The electromagnet has inductance 65.0 mH and resistance 7.86 Ω (meaning you can treat it as an LR circuit with the inductance in series with the resistance). It operates from a 6.00-V source. How long does it take for the current in the electromagnet to reach 0.700 A?
Question 20 An electromagnet can be modeled as an inductor in series with a resistor. Consider a large electromagnet of inductance L17 H and resistance R - 7.5V connected to a 19V battery and switch as in the figure below. s + E 000 L R W Find the time it takes the current to reach 95.0% of its maximum value after the switch is closed.
A coil which has an inductance of 40mH and a resistance of 2 ohms is connected together to form a LR series circuit. If they are connected to a 20 V DC supply (10 points) • What will be the time constant of the RL series circuit? • What will be the value of the circuit current one time constant after the switch is closed. • What will be the final steady state value of the current?
1) Rall Gun". A metal bar with mass of 2 kg., 1.5 m long and having a resistance of 10 Ω rests horizontally on wires of a unclosed circuit comprising a 120V DC power supply connected in series with a 25 Ω resistor and a switch in a uniform magnetic fleld of 1.6 T orthogonal to the plane of the circuit. What is the acceleration of the bar right after the switch is closed?
1) Rall Gun". A metal bar...
SerCP11 20.6.P.043. -13 points My Notes Ask Your Teaches An electromagnet can be modeled as an inductor in series with a resistor. Consider a large electromagnet of inductancee L14.0 H and resistance R 3.00 0 connected to a 12.0-V battery and switch as in the fiqure shown below. After the switch is closed, find the following (a) the maximum current carried by the electromagnet (b) the time constant of the circuit (c) the time it takes the current to reach...
In a RL series circuit, the current reaches half its maximum
value in 2.0 s after the switch is closed. If the resistance is 5.0
Ω, find the inductance of the inductor. (4 pts)
In a RL series circuit, the current reaches half its maximum value in 2.0 s after the switch is closed. 5) If the resistance is 5.0 Ω, find the inductance of the inductor. (4 pts)
1. A circuit is composed of a capacitor connected in series to an inductor (L=2E-3 H) and resistor (R=100 Ohms). The capacitor is initially uncharged. What is the instantaneous current flowing through the circuit at time t = 0.34 s. 2. An LR circuit contains an ideal 50-V battery, a 42-H inductor having no resistance, a 21-Ω resistor, and a switch S, all in series. Initially, the switch is open and has been open for a very long time. At...