The following circuit is used by a biology student to study "frog kick." She noticed that the frog kicked a little when the switch was closed but kicked violently when the switch was opened. Model the frog as a resistor (Rfrog = 1000N). Assume that switch has been closed for a long time. a) Compute the initial inductor current under DC conditions. b) At t = Os the switch is opened. Compute inductor current for t > 0. c) What is voltage applied to frog for t 2 0? What could be a possible reason for the frog's violent kick? Switch 50 2 Frog + 12 V 2 H all

The following circuit is used by a biology student to study "frog kick." She noticed that the frog kicked a little when the switch was closed but kicked violently when the switch was opened. Model the frog as a resistor (Rfrog = 1000N). Assume that switch has been closed for a long time. a) Compute the initial inductor current under DC conditions. b) At t = Os the switch is opened. Compute inductor current for t > 0. c) What is voltage applied to frog for t 2 0? What could be a possible reason for the frog's violent kick? Switch 50 2 Frog + 12 V 2 H all

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...

See similar textbooks

Similar questions

In the diagram below, the switch S has been closed for a long time. A) What is the output voltage Vout? What is the charge on the capacitor? b) The switch is opened, so the output voltage increases. What is the time constant that describes the charging of the capacitor in terms of R and C? c) When Vout reaches 10 V, the switch closes and the capacitor begins to discharge. What is the time constant that describes the discharging in terms of R and C? Hint: Apply Kirchhoff's Rules to both loops and the sum of the currents at the junction above the capacitor in the diagram, and use I=dq/dt. If the switch opens when Vout reaches a lower value, say 5V, the capacitor will charge again, and thus one can cycle the voltage with a time constant determined by the circuit: this demonstrates the principle of operation of an electronic timer. 4R S 15 V Vout R
What is a capacitor and how do they work? What is it about capacitors that make them unique? What is the formula for one time constant? How many time constants does it take to fully charge a capacitor? Show illustrations. What other electronic component(s) are commonly found with a capacitor…especially in timing circuits? What types of capacitors are there? What are the formulas for series and parallel capacitors? If three 30 uF capacitors were connected in parallel what would the net capacity be? How about the net value if the capacitors in Q7 were connected in series? If you were to connect a 5K-ohm resistor in series as in Q7… what would the first time constant be? What about time to full charge? Describe the difference between AC (alternating current) and DC (direct current). Use illustrations. Why is voltage generated and distributed in AC? What type of circuit(s) would change AC to DC? How about DC to AC?
Q2/ For the network shown in figure (Q2), the switch has been open for a long time before closing at t=0. Determine an expression for the inductor (L=20mH) current İL(t) for t20. 300 L 36V iL (2othH 5oonF 12 ISA losr
The magnitude of the voltage applied to the electrodes of a welding machine can be adjusted in the circuit below. In the range of minimum and maximum value that variable value resistor can take What is the time interval that the capacitor will charge from 0 to 8 V?
When the switch is in position 1, the circuit will charge the capacitor. Find the Thevenin Equivalent Circuit for the charge phase and determine the time constant (Rh*C) for the charge phase.
P:16) Given the current across the inductor @ t= 3s is 0.875 A. What is the voltage across the 3 ohm resistor? Assume that the switch is open.
In the circuit at right, a 100 mH inductor and a 5 N resistor are connected by a switch to a 6 V battery. hlllo a. After the switch is thrown to position a (connecting the battery), what time interval elapses before the current through the inductor is 200 mA? b. What is the current through the inductor 10 seconds later? c. Now the switch is quickly thrown from position a to position b, such that the inductor and resistor form a complete circuit separate from the battery. How much time elapses before the current falls to 200 mA? R L bọ
In the figure ɛ = inductor is ideal. If the switch is closed for a long time, what is the current through the inductor. Give your answer in A. 10.0 V, R, = 4.00 N, and R2 = 1.00 N. The %3D %3D
For the circuit below with switch U1 closing at time t=0 and the initial current in inductor L1 equal zero, find the transient response voltage across the resistor R1: (Provide your calculations and reasoning for your answer.) L1 U1 50mH 11 R2 1k R1 0.150Ado 15
The following questions refer to the circuit represented by the diagram at right. Think of R2 as the internal resistance of the inductor. a) Immediately after the switch is closed, find the magnitude and direction of the conventional current (if any) through the battery, and find the potential difference across the inductor. b) A long time after the switch is closed, find the magnitude and direction of the conventional current (if any) through the battery, and find the potential difference across the inductor. c) After the switch has been closed for a long time it is suddenly opened. Immediately after the switch is opened, find the magnitude and direction of the conventional current (if any) through the resistor R1 and the potential difference across the inductor.
In the circuit shown in figure the switch is closed at time (t=0). The rate of change of current dt across inductor will be tm0 20 8F 20v (3H