Question

An RL circuit has emf0= 9.2 V, R = 72ohm, and L = 250 μH. If...

An RL circuit has emf0= 9.2 V, R = 72ohm, and L = 250 μH. If the switch closes in 
t= 0, calculate: 
a) the current that passes through the circuit; 
b) the potential difference between resistance ends; and 
c) the potential difference between induction ends, at instants t = 0, t = 3.0 μs, t = 7.5 μs, and t = 35 μs.
0 0
Add a comment Improve this question Transcribed image text
Answer #1

So all answers are summarised here

Current (Formula shown above)

0A @0s

0.074A @3s

0.113A @7.5s   

0.128 @35s

Potential across resistor (Formula shown above)

0V @0s

5.32V @3s

8.14V @7.5s   

9.2V @35s

The values of the potential across inductor coil is given in above picture alongwith the formula.

Add a comment
Know the answer?
Add Answer to:
An RL circuit has emf0= 9.2 V, R = 72ohm, and L = 250 μH. If...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • Consider the RL circuit in the diagram, where R1-110 Ω,R2 220 Ω,L = 25 H, and E = 350 V The switc...

    Consider the RL circuit in the diagram, where R1-110 Ω,R2 220 Ω,L = 25 H, and E = 350 V The switch is closed at t 0 s 4. [5pt] Find the energy stored in the inductor at the following times i5.0 ms (i.e., a long time after the switch has been closed) [ans. 0 J, 59.9 mJ, 126.5 J] Question to be Graded Manually 5. [5pt] For the same circuit, find the potential difference across R1 at the following...

  • For the RL circuit pictured below, L = 86.5 Henries and R = 8.5 Ohms. The...

    For the RL circuit pictured below, L = 86.5 Henries and R = 8.5 Ohms. The switch is placed in position 1 for a long time before it is switched to position 2. After waiting 3 seconds, the current in the circuit is 8.9 Amperes. What is the potential difference across the battery?

  • For the RL circuit pictured below, L = 86.5 Henries and R = 8.5 Ohms. The...

    For the RL circuit pictured below, L = 86.5 Henries and R = 8.5 Ohms. The switch is placed in position 1 for a long time before it is switched to position 2. After waiting 3 seconds, the current in the circuit is 8.9 Amperes. What is the potential difference across the battery?

  • a. With a battery emf of 17.2 V in the RL circuit (R=0.410 2 and L=...

    a. With a battery emf of 17.2 V in the RL circuit (R=0.410 2 and L= 86.0 mH), what is the self-induced emf when the switch has just been closed on a? Submit Answer Tries 0/10 What is the self-induced emf after two L/R time constants have passed? Submit Answer Tries 0/10 In units of the time constant, after how much time will the self-induced emf be just one-half of the battery emf? Submit Answer Tries 0/10

  • Decay of Current in an L-R Circuit

    Learning Goal: To understand the mathematics of current decay in an L-R circuitA DC voltage source is connected to a resistor of resistance R and an inductor with inductance L, forming the circuit shown in the figure. For a long time before t=0, the switch has been in the position shown, so that a current I0 has been built up in the circuit by the voltage source. At t=0 the switch is thrown to remove the voltage source from the circuit. This...

  • The Natural Response of an RL Circuit In summary, to find the time constant of an...

    The Natural Response of an RL Circuit In summary, to find the time constant of an RL circuit, find the Thevenin equivalent resistance se Learning Goal: To analyze an RL circuit to determine the initial current through an inductor, the time constant, and the expression for the natural response of the inductor current, and to use the expression for the inductor current to find other circuit quantities, such as current, voltage, power, or energy. The natural response of an RL...

  • ON CAPAC Transient RL Circuit Consider the circuit shown in the figure. The resistance of the...

    ON CAPAC Transient RL Circuit Consider the circuit shown in the figure. The resistance of the wire used to make the inductor is negligible compared to the resistors in the circuit. V-140 V, R; -10.Ohms, Ry - 1100 Ohms, and L-200 H RI WWW For this part, assume that switch S has been closed for a long time so that steady currents exist in the circuit. Find (1) the battery current, (2) the current in resistor Ry, and (3) the...

  • Question # 1 - In a series R-L circuit, a voltage of 10 V at 50...

    Question # 1 - In a series R-L circuit, a voltage of 10 V at 50 Hz frequency produces a current of 750 mA. In the same circuit with same magnitude of applied voltage with a frequency of 75 Hz produces a current of 500 mA. Find out the values of R and L in the circuit. Question # 2 - Derive the equations of active, reactive and apparent powers in a series R-L circuit with sinusoidal AC supply. Question...

  • E S Figure 31.2: RL Circuit (Problems 8 and 10) 10. In the circuit given in...

    E S Figure 31.2: RL Circuit (Problems 8 and 10) 10. In the circuit given in Fig. 31.2, R 20 kS2, R220 k2, L 50 mH, and the ideal battery has E40 V. The switch has been open for a (a) Just after the switch was closed, what are the current through the (b) After a very long time, what is the current through the battery (c) What is the current through the battery and its rate of change at...

  • 7. In the circuit below, R = 10.0 0, L = 30.0 H, and € =...

    7. In the circuit below, R = 10.0 0, L = 30.0 H, and € = 20.0 V. Switch Si is closed and switch Sz is left open. After the current has reached its final value, switch S1 is opened and switch S2 is closed. What is the magnitude of the potential difference between points a and b three seconds after Sz is closed (in V)? (A) 3.89 (B) 9.12 (C) 2.00 (D) 7.36 (E) 6.54 (F) 1.00 s Sa...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT