A power of 100 kW (10 5 W) is delivered to the other side of a city by a pair of power lines, between which the voltage is 12,000 V. (a) Use the formula P = IV to show that the current in the lines is 8.3 A. (b) Show that if each of the two lines has a resistance of 10 Ω, there is a 83-V change of voltage along each line, (Think carefully. This voltage change is along each line, set between the lines .)
A power of 100 kW (10 5 W) is delivered to the other side of a city by a pair of power lines, between which the voltage is 12,000 V. (a) Use the formula P = IV to show that the current in the lines is 8.3 A. (b) Show that if each of the two lines has a resistance of 10 Ω, there is a 83-V change of voltage along each line, (Think carefully. This voltage change is along each line, set between the lines .)
A power of 100 kW (105W) is delivered to the other side of a city by a pair of power lines, between which the voltage is 12,000 V.
(a) Use the formula P = IV to show that the current in the lines is 8.3 A.
(b) Show that if each of the two lines has a resistance of 10 Ω, there is a 83-V change of voltage along each line, (Think carefully. This voltage change is along each line, set between the lines.)
two satellites are in circular orbits around the Earth. Satellite A is at an altitude equal to the Earth's radius, while satellite B is at an altitude equal to twice the Earth's radius. What is the ratio of their periods, Tb/Ta
Fresnel lens: You would like to design a 25 mm diameter blazed Fresnel zone plate with a first-order power of
+1.5 diopters. What is the lithography requirement (resolution required) for making this lens that is designed
for 550 nm? Express your answer in units of μm to one decimal point.
Fresnel lens: What would the power of the first diffracted order of this lens be at wavelength of 400 nm?
Express your answer in diopters to one decimal point.
Eye: A person with myopic eyes has a far point of 15 cm. What power contact lenses does she need to correct
her version to a standard far point at infinity? Give your answer in diopter to one decimal point.
Paraxial design of a field flattener. Imagine your optical system has Petzal curvature of the field with radius
p. In Module 1 of Course 1, a homework problem asked you to derive the paraxial focus shift along the axis
when a slab of glass was inserted in a converging cone of rays. Find or re-derive that result, then use it to
calculate the paraxial radius of curvature of a field flattener of refractive index n that will correct the observed
Petzval. Assume that the side of the flattener facing the image plane is plano. What is the required radius of
the plano-convex field flattener? (p written as rho )
Chapter 9 Solutions
Conceptual Physical Science Plus Mastering Physics with Pearson eText -- Access Card Package (6th Edition)
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
How To Solve Any Resistors In Series and Parallel Combination Circuit Problems in Physics; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=eFlJy0cPbsY;License: Standard YouTube License, CC-BY