Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Electrical & Electronics Expert

Q1. Describe what is meant by the term input and output interfaces in relation to the PLCs.

Q2. State in brief what are the functions of interfaces in relation to the various types of process signal?

Q3. The figure shown below shows a bi-directional opto coupler input interface circuit. When a supply voltage of 20 V is applied to LED carries a current and 2 V is dropped across it. Compute the value of the LED current and the value of current via 3 kΩ resistance.

425_interface circuit.jpg

Q4. The circuit shown below is part of the interface of a relay output module. Ib is 1 mA and VCC is 9 V. The relay needs a minimum of 50 mA to energize.

2434_relay output module.jpg

Complete the values of the suppositions listed below in order to compute:

a) Voltage across R1
b) Value of R1
c) Voltage across the relay coil
d) Voltage across R2
e) Value of R2
f) Collector of current Ic.

Assumptions:

Logic '1' = …. V
Logic '0' = …. V
Transistor forward current gain hfe = ….
LED current = 10 mA
LED voltage drop at 10 mA = …. V
Base/emitter voltage = …. V
Collector emitter voltage when transistor is on =  1 V

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M910086

Have any Question? 


Related Questions in Electrical & Electronics

Ohms law problemsquestion 1an alarm clock draws 05 a of

Ohm's Law Problems Question 1 An alarm clock draws 0.5 A of current when connected to a 120 volt circuit. Calculate its resistance. a) 150 ohms b) 120 ohms c) 60 ohms d) 240 ohms Question 2 If one 9 volt battery is used ...

1 discuss the general solutions for the line voltage and

1. Discuss the general solutions for the line voltage and current in time-domain and the notation associated with their representation in concise form. 2. What is the fundamental distinction between the occurrence of the ...

1 in jpeg explain why we need to round the result of

1. In JPEG, explain why we need to round the result of division in the quantization step. 2. Explain why the combination of quantization/dequantization steps in JPEG is a lossy process even though we divide each element ...

1 the rocket nozzle shown below consists of three welded

1. The rocket nozzle shown below consists of three welded sections. Determine the axial stress at junctions 1 and 2 when the rocket is operating at sea level. The mass flow rate is 770 lb m /s. 2. The pressure on the con ...

1 what are the two types of firewalls2 what is a vpn and

1. What are the two types of firewalls? 2. What is a VPN and why is it needed? 3. How do LANs on a fully private internet communicate? 4. Host A and host B use IPSec in the transport mode. Can we say that the two hosts n ...

1 complete the missing steps in the evaluation of the

1. Complete the missing steps in the evaluation of the integral in equation (9.39a). 2. Find the time-average power required to be radiated by a half-wave dipole in order to produce an electric field intensity of peak am ...

The grades of a group of 1000 students in an exam are

The grades of a group of 1000 students in an exam are normally distributed with a mean of 70 and a standard deviation of 10. A student from this group is selected randomly. a) Find the probability that his/her grade is g ...

Consider the problem of performing system identification as

Consider the problem of performing system identification as shown previously in Figure 9.49. Suppose the system to be identified is the following IIR filter. Write a MATLAB program that uses the FDSP toolbox function f l ...

Make an analytical model of a tornado using an irrotational

Make an analytical model of a tornado using an irrotational vortex (with velocity inversely proportional to distance from the center) outside a central core (with velocity directly proportional to distance). Assume that ...

1 state gauss law for the electric field2 how is volume

1. State Gauss' law for the electric field. 2. How is volume charge density defined? 3. State the law of conservation of charge. 4. How is Gauss' law for the electric field derived from Ampere's circuital law?

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro