A single-core underground cable has a copper conductor of diameter 1.2cm and resistivity of 5.8x10^12 Q.m. If the thickness of the insulating material is 1.2 cm, calculate the insulation resistance of a 5-km length of this cable in Megaohms.

A single-core underground cable has a copper conductor of diameter 1.2cm and resistivity of 5.8x10^12 Q.m. If the thickness of the insulating material is 1.2 cm, calculate the insulation resistance of a 5-km length of this cable in Megaohms.

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

I need an expert solution in MATLAB language for the question, and I need the solution to be using MATLAB and in the form of an image. I do not need any notes with the program, just an explanation at the end of the image. By the way, two questions. Q2. Write a MATLAB user-defined function, freefall(), that computes the velocity and the distance of a free fall object. The velocity and the distance of a free fall object can be written as: v = gt y = yo+gt² where yo is the initial position, t is the time travelled and g is the acceleration due to gravity (- 9.81 m/s2). Note that the initial position can only be a scalar value. Q7. Write a user-defined MATLAB Function for the following math function: ((xy-5)² z = if x, y > 0 elsewhere The inputs to the function are x and y, where the output is z. Write the function such that x and y can be vectors. I. II. Use the function to calculate z(3,4) and z(5, -7). Use the function to make a colored 3D plot of the function z for -5
Number 2 A piece of beef steak 7 cm thick will be frozen in the freezer room -30°C. This product has a moisture content of 73%, a density of 970 kg/m³, and a thermal conductivity (frozen) of 1.1 W/(m²K). Estimate the freezing time. using the Plank equation. This product has an initial freezing temperature of -1.75°C, and the movement of air in the freezing room gives a convective heat transfer coefficient of 15 W/(m²K). t f = answer in hour
Find ix (current at 1ohm) in the circuit
Solve number 1. You can use other problems on the internet as long as you’re going to provide an explanation on how to solve it.
Travel and Tourist (T&T) company has been awarded by the government to transform Pulau Kecik to tourist island. Electrical supply is found a big challenge for this development. Thus, T&T has hired your company to design a reliable mesh or loop isolated power system network in the island. The island divided into five areas namely North, South, West, East and Center area which later can be the bus name. TABLE Q1 provides the initial design parameters to be adopted. TABLE Q1 Base MVA Voltage level 100 MVA 11 kV Total load 15 MW Complying with the information given in TABLE Q1, you are given flexibility to choose relevant and logical parameters to design the network. This flexibility allows you to decide on the network topology, slack bus voltage, number of generator bus (PV bus), generator power, generator voltage, number of load bus (PQ bus), load real power, load reactive power, impedance of the generators and lines/cables. State all your assumptions where applicable and avoid copying…
Problem #14. Find V2.
An electric toothbrush has a base designed to hold the toothbrush handle when not in use. As shown, the handle has a cylindrical hole that fits loosely over a matching cylinder on the base. When the handle is placed on the base, a changing current in a solenoid inside the base cylinder induces a current in a coil inside the handle. This induced current charges the battery in the handle. We can model the base as a solenoid of length ℓ with NB turns (as shown), carrying a current i, and having a cross-sectional area A. The handle coil contains NH turns and completely surrounds the base coil. Find the mutual inductance of the system.
III PROBLEM SOLVING: Solve the following below. . 2.
Solve the equation. PLEASE SHOW YOUR SOLUTION IN TERMS OF THE EQUATIONS BELOW. The final answer is already given in the picture. This is a control system problem, the topic is block diagram algebra. I need the answer of this in 10 minutes please.
By defining the linearity property of systems, specify in detail in which cases the systems will be linear.
b) A jacketed vessel is used to cool a process stream as shown in the below. Ty V b1) Derive a dynamic model for this system in terms of deviation variables. (State any additional assumptions that you make). You are given the following additional information below b2) Discuss the method you will need to follow in order to generate the process transfer function based on the model derived in bl. (1) The volume of liquid in the tank V and the volume of coolant in the jacket V, remain constant. Volumetric flow rate g is constant but g, varies with time. (ii) Heat losses from the jacketed vessel are negligible. (ii) Both the tank contents and the jacketed contents are well mixed and have significant thermal capacitances. (iv) The thermal capacitances of the tank wall and the jacket wall are negligible. () The overall heat transfer coefficient for transfer between the tank liquid and the coolant varies with coolant flow rate: where U [=) Btu/h ft E K-constant|
Q.1) Solve the following ladder circuit using the function method, that is, leave all the variables as a function of the last current to subsequently substitute its value in all the equations. Since there are 12 resistors, the answer consists of 24 values, 12 voltages, and 12 currents. Write your answer in table form, where you indicate the value of each resistor, the formula for the voltage and current of each, its final value of voltage and current. Use 2 decimal places for each voltage or current and let everything be expressed in Volts and Amps. Attach your procedure along with the table.