Delmar's Standard Textbook of Electricity (MindTap Course List)
6th Edition
ISBN: 9781285852706
Author: Stephen L. Herman
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 15, Problem 1RQ
Which trigonometric function is used to find the angle if the length of the hypotenuse and of the adjacent side are known?
Expert Solution & Answer
To determine
The trigonometric function that is used to find the angle if the length of the hypotenuse and length of the adjacent side are known.
Answer to Problem 1RQ
Cosine functionis used to find the angle if the length of the hypotenuse and length of the adjacent side are known.
Explanation of Solution
In the figure above,
A: Side opposite to angle X, adjacent to angle Y
B: Side opposite to angle Y, adjacent to angle X
Hence,
Hypotenuse, side A and angle Y are related as : cos Y = side A/Hypotenuse
Hypotenuse, side B and angle X are related as : cos X = side B/Hypotenuse
Want to see more full solutions like this?
Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
The directivity of an antenna is 12 dB. What will be the beam solid angle of the antenna? Express the answer in steradian.
If the solid angle subtended by the main beam of an antenna is 0.5 steradian then what will be the directivity of the antenna?
The gain of a parabolic reflector antenna is 1000 when the frequency is 300 MHz. If the mouth of the reflector aperture is circular, then what will be the aperture of the mouth?
Chapter 15 Solutions
Delmar's Standard Textbook of Electricity (MindTap Course List)
Ch. 15 - 1. Which trigonometric function is used to find...Ch. 15 - 2. If side A has a length of 18.5 ft and side B...Ch. 15 - Prob. 3RQCh. 15 - Prob. 4RQCh. 15 - 5. The hypotenuse has a length of 65 in., and side...Ch. 15 - Prob. 6RQCh. 15 - Prob. 7RQCh. 15 - Prob. 8RQCh. 15 - Using the dimensions in Question 8, what is the...Ch. 15 - Prob. 10RQ
Knowledge Booster
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.Similar questions
- An antenna is mounted on a 2 meter rod that is held out of level so that the antenna is offset by 0.4' from the bottom of the rod. What is the angular error of the rod? What is the vertical error of the measurement?arrow_forwardAt a certain time, the maximum usable frequency (MUF) for transmission at an angle of incidence of 75° is 20MHz. A) What is the critical frequency in MHz? (Use two decimal places for the final answer) B) What will be the optimum working frequency (OWF) in MHz? (Use two decimal places for the final answer)arrow_forwardTrue or False. If the noise variance increases, the average power density of the Gaussian white noise increasesarrow_forward
- Calculate the First Null Beamwidth and the gain of a parabolic reflector antenna. The diameter of the reflector is 5m and the antenna is transmitting at 100 MHz.arrow_forwardIn free space " check image " Find the average power crossing a circular area of radius 2 meters in a plane ? = 0.arrow_forwardWhat are the various feeling mechanism used in reflector antennas, and what is sployer? Determine the diameter of the mouth and HPBW of a parabole refectur with a power gain of 300 and operating frequency is 2 GHzarrow_forward
- Prepare a table of values for the change of maximum usable frequency when an incident angle [6M] change from 900 to 00 (calculate for every 10 degrees), and plot a graph, assume that the critical frequency is constant at 30MHz. and give your observation over the graph.arrow_forwardWhat is the height of a communications antenna required to cover a distance of 100km if it operates on 6GHz frequency? a. 588 m b. 125 m c. 250 m d. 100 m Plz do ASAP.....!arrow_forwardPLEASE SHOW ALL WORK 2. Following plot is the radiation pattern of an antenna. Determine: a) Antenna gain in dBi and dBd b) Front to back ratio in dB. (Show calculation steps by marking on the diagram)arrow_forward
- An antenna has a directive gain of 25 dB. If the antenna is transmitting at a frequency of 10 GHz, then what will be the effective aperture of the antenna?arrow_forwardA dish antenna has a gain of 108 at 300 MHz. What will be the diameter of the dish antenna?arrow_forwardA parabolic reflector antenna having antenna efficiency 75% is designed for 3 GHz resonant frequency with 2.5dB waveguide loss. Find out the antenna diameter if effective isotropic radiated power (EIRP) is calculated 46dBW and transmitting power is 500W.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Delmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage Learning
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning
The Divergence Theorem; Author: Professor Dave Explains;https://www.youtube.com/watch?v=vZGvgru4TwE;License: Standard Youtube License