A power of 100 kW (105 W) is delivered to the other side of a city by
Question:
A power of 100 kW (105 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) If each of the two lines has a resistance of 10 Ω, show that there is a 83-V change of voltage along each line. (Think carefully. This voltage change is along each line, not between the lines.)
(c) Show that the power expended as heat in both lines together is 1.38 kW (distinct from power delivered to customers).
(d) How do your calculations support the importance of stepping voltages up with transformers for long-distance transmission?
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
a Since P IV the current supplied to the users is b Voltage i...View the full answer
Answered By
Pratik Agarwal
I graduated with a B. Tech in Engineering Physics from the Indian Institute of Technology (IIT) Bombay. During this time I was also a volunteer for Abhyasika (Student organization that helps underprivileged kids with their school education).
Relevant Scholastic Accomplishments:
1. Published an article in the Journal of Quantum Information Processing titled: Automated Error Correction in a d-state quantum circuit.
2. Received a gold medal for being among the Top 35 from 40000 candidates across the country in the Indian National Physics Olympiad.
For the past 3 years, I have been working in the field of machine learning (mainly computer vision and natural language processing). Currently, I am acting as a Thesis Supervisor for students pursuing their Masters in Data Science/Machine Learning from Liverpool John Moore's University (LJMU) in association with Upgrad, and simultaneously pursuing my Masters in Computer Science from Georgia Tech through their OMSCS program.
0 Reviews
10+ Question Solved
Related Book For 
Question Posted:
