A horizontal power line carries a current of 5000 A from south to north. Earth's magnetic field
Question:
A horizontal power line carries a current of 5000 A from south to north. Earth's magnetic field (60.0μT) is directed toward the north and inclined downward at 70.0° to the horizontal. Find the
(a) Magnitude and
(b) Direction of the magnetic force on 100 m of the line due to Earth's field.
Step by Step Answer:
a The magnitude of the magnetic force on the wire is given by FB iLB sin d wh...View the full answer
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
Related Video
A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field. The video shows the practical implications of magnetic force around different objects.
Students also viewed these Electricity and Magnetism questions
-
A high-voltage power line carries a current of 5000 A. If the power line is a height 20 m above the ground, what is the magnetic field strength at ground level? How does it compare with the Earths...
-
A river flows from south to north at 5.0 km/h. On this river, a boat is heading east to west perpendicular to the current at 7.0 km/h. As viewed by an eagle hovering at rest over the shore, how fast...
-
A power line carries a current of 95 A along the tops of 8.5-m-high poles. What is the magnitude of the magnetic field produced by this wire at the ground? How does this compare with the Earths field...
-
Imagine that a researcher develops a new cancer drug that shrinks tumors, which she measures using an MRI. The researcher needs to determine if the new drug performs differently from, or the same as,...
-
Your grandfather would like to share some of his fortune with you. He offers to give you money under one of the following scenarios (you get to choose): 1. $8,750 per year at the end of each of the...
-
A number of group-buying websites, such as Groupon and BuyWithMe, offer consumers a large discount on a popular product if enough other consumers agree to purchase the product. (a) Describe the...
-
A chemical plant contains the following equipment: (a) Two gas-fired heaters, each with a heat duty of \(20,000,000 \mathrm{Btu} / \mathrm{hr}\). The tubes are carbon steel and the heaters operate at...
-
Cameron Bly is a sales manager for an automobile dealership. He earns a bonus each year based on revenue from the number of autos sold in the year less related warranty expenses. Actual warranty...
-
7.33 moles of a diatomic gas are at a temperature of 317 K. What is the internal energy of the gas?
-
Richard chooses technique 0 and 2 requiring 10+10-20 efforts and provising 10+11=21 benefits. Hence, 21 is returned as the output Example 2: input1: 3 input2: (10,10,10,10) input3: (10,11,12,15)...
-
The bent wire shown in Figure lies in a uniform magnetic field. Each straight section is 2.0 m long and makes an angle of = 60? with the x axis, and the wire carries a current of 2.0 A. What is the...
-
A wire 1.80 m long carries a current of 13.0 A and makes an angle of 35.0 with a uniform magnetic field of magnitude B = 1.50 T. Calculate the magnetic force on the wire.
-
Four years ago, Bling Diamond, Inc., paid a dividend of $1.02 per share. The firm paid a dividend of $1.87 per share yesterday. Dividends will grow over the next five years at the same rate they grew...
-
Course: LEG 100 Business Law I Book: Managers and the legal environment - Chapter 12 Summarize the value of knowing about environmental law (at least some aspects of it), even if you are not...
-
A recurrent theme in Canadian environmental law is the imposition of liability for environmental harm in the absence of fault. Discuss under what circumstances the imposition of no fault liability...
-
As an environmentalist, you are very interested in how public opinion and economics play a role in determining how many and what type of environmental laws are passed. The research paper you prepare...
-
With reference to specific examples, discuss the extent to which Canadian environmental law (both public and private law) provides for opportunities for public participation. Include in your...
-
What are some of the ways environmental laws impact human lives?
-
Boxes A and B in Figure P10.69 have masses of \(12.0 \mathrm{~kg}\) and \(4.0 \mathrm{~kg}\), respectively. The two boxes are released from rest. Use conservation of energy to find the boxes' speed...
-
Economic feasibility is an important guideline in designing cost accounting systems. Do you agree? Explain.
-
Calculate the derivative with respect to x of the other variable appearing in the equation. + 12 + x
-
(a) Find the current through the battery and each resistor in the circuit shown in Fig. (b) What is the equivalent resistance of the resistor network? R = 1.00n R = 1.00 n 2 = 2.000 14.0 w- = 2.00N...
-
(a) Find the potential of point a with respect to point b in Fig. (b) If points a and b are connected by a wire with negligible resistance, find the current in the 12.0-V battery. 1.00n 12.0 V wtli...
-
(a) What must the emf E of the battery be in order for a current of 2.00 A to flow through the 5.00-Vbattery as shown? Is the polarity of the battery correct as shown? (b) How long does it take for...
-
www The sugar cane industry is a big industry on Hawaii. Raw sugar cane is first cut from the fields, then chopped and shredded. The raw cane contains 15 wt% sucrose, 25 wt% solids, and water, along...
-
What does a manager who subscribes to Theory X believes ? Explain thoroughly.
-
Keri, in forming a new corporation, transfers land to the corporation in exchange for 100 percent of the stock of the corporation. Keri's basis in the land is $295,000, and the corporation assumes a...
Study smarter with the SolutionInn App