The discharging time constant for the circuit below is, nanoseconds. 5 V MPU 2 kQ RESET 100 kQ 1 pF SW 1

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...
icon
Related questions
Question
**The discharging time constant for the circuit below is __________ nanoseconds.**

---

**Circuit Explanation:**

This is an RC (resistor-capacitor) circuit connected to a microprocessor unit (MPU) for reset purposes. The circuit involves the following components:

1. **Resistors:**
   - **2 kΩ Resistor:** Connected to a 5V power supply.
   - **100 kΩ Resistor:** Connected in series with the capacitor and switch.

2. **Capacitor:**
   - **1 pF Capacitor:** Connected parallel to the 100 kΩ resistor.

3. **Switch (SW 1):**
   - Represents a momentary connection to ground, potentially for discharging the capacitor.

4. **Connections:**
   - The circuit is powered by 5V.
   - The point between the resistors serves as a control line to the MPU for the RESET function.
   - The circuit is grounded at the bottom.

**Functionality:**

This circuit likely serves as a reset mechanism for the MPU. When SW 1 is closed, the capacitor discharges through the resistors. The time taken for this discharge, characterized by the discharge time constant (\(\tau\)), is determined by the product of the resistance and capacitance values in the circuit.

To calculate the time constant \(\tau\), use the formula:
\[
\tau = R \times C
\]
where \(R\) is the resistance (100 kΩ) and \(C\) is the capacitance (1 pF). 

Calculating will give the time constant in seconds, which can be converted to nanoseconds.
Transcribed Image Text:**The discharging time constant for the circuit below is __________ nanoseconds.** --- **Circuit Explanation:** This is an RC (resistor-capacitor) circuit connected to a microprocessor unit (MPU) for reset purposes. The circuit involves the following components: 1. **Resistors:** - **2 kΩ Resistor:** Connected to a 5V power supply. - **100 kΩ Resistor:** Connected in series with the capacitor and switch. 2. **Capacitor:** - **1 pF Capacitor:** Connected parallel to the 100 kΩ resistor. 3. **Switch (SW 1):** - Represents a momentary connection to ground, potentially for discharging the capacitor. 4. **Connections:** - The circuit is powered by 5V. - The point between the resistors serves as a control line to the MPU for the RESET function. - The circuit is grounded at the bottom. **Functionality:** This circuit likely serves as a reset mechanism for the MPU. When SW 1 is closed, the capacitor discharges through the resistors. The time taken for this discharge, characterized by the discharge time constant (\(\tau\)), is determined by the product of the resistance and capacitance values in the circuit. To calculate the time constant \(\tau\), use the formula: \[ \tau = R \times C \] where \(R\) is the resistance (100 kΩ) and \(C\) is the capacitance (1 pF). Calculating will give the time constant in seconds, which can be converted to nanoseconds.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Three Phase Controlled and Uncontrolled Rectifiers
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:
9780133923605
Author:
Robert L. Boylestad
Publisher:
PEARSON
Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Electrical Engineering
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
Fundamentals of Electric Circuits
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:
9780078028229
Author:
Charles K Alexander, Matthew Sadiku
Publisher:
McGraw-Hill Education
Electric Circuits. (11th Edition)
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:
9780134746968
Author:
James W. Nilsson, Susan Riedel
Publisher:
PEARSON
Engineering Electromagnetics
Engineering Electromagnetics
Electrical Engineering
ISBN:
9780078028151
Author:
Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:
Mcgraw-hill Education,