0. ★★ The RL circuit in Figure 25-73 consists of an ideal battery; a resistor, R; an inductor, L; and a switch, S, that has three different positions: a, b, and N. Initially, the switch is in position N (the circuit is open). After the circuit switch is moved to position a and time At elapses, the current in the circuit reaches 50% of its maximum value. The switch remains in position a for the time interval 107. After that, the switch is moved into position b. (a) What is the time constant of this RL circuit? (b) What are the values of the electric current in the circuit, the energy density in the coil, and the emf across the coil (i) when the switch has been at position a for a long time? (ii) after the switch has moved to position b and 7 seconds have elapsed? (iii) after the switch has moved to position b and 37 seconds have elapsed? Support your answers with a graph of the electric cur- rent in the circuit versus time. N 9b ti R ele L

0. ★★ The RL circuit in Figure 25-73 consists of an ideal battery; a resistor, R; an inductor, L; and a switch, S, that has three different positions: a, b, and N. Initially, the switch is in position N (the circuit is open). After the circuit switch is moved to position a and time At elapses, the current in the circuit reaches 50% of its maximum value. The switch remains in position a for the time interval 107. After that, the switch is moved into position b. (a) What is the time constant of this RL circuit? (b) What are the values of the electric current in the circuit, the energy density in the coil, and the emf across the coil (i) when the switch has been at position a for a long time? (ii) after the switch has moved to position b and 7 seconds have elapsed? (iii) after the switch has moved to position b and 37 seconds have elapsed? Support your answers with a graph of the electric cur- rent in the circuit versus time. N 9b ti R ele L

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Thermocouple

A thermocouple is a temperature measurement device. It includes diverse metal wires which are joined collectively to form a joint. At the same time as the junction is hot or cold, a small voltage is generated inside the measuring thermocouple electrical circuit, which corresponds to the temperature.

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hello could you please solve this

70. ★★ The RL circuit in Figure 25-73 consists of an ideal
battery; a resistor, R; an inductor, L; and a switch, S,
that has three different positions: a, b, and N. Initially,
the switch is in position N (the circuit is open). After
the circuit switch is moved to position a and time At
elapses, the current in the circuit reaches 50% of its
maximum value. The switch remains in position a for
the time interval 107. After that, the switch is moved
into position b.
(a) What is the time constant of this RL circuit?
(b) What are the values of the electric current in the
circuit, the energy density in the coil, and the emf
across the coil
(i) when the switch has been at position a for a
long time?
(ii)
after the switch has moved to position b and
T seconds have elapsed?
after the switch has moved to position b and
37 seconds have elapsed?
Support your answers with a graph of the electric cur-
rent in the circuit versus time.
(iii)
S
N 9b
Zida
{
R
ww
20
000

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