If an electric wire is allowed to produce a magnetic field no larger than that of...
Homework Answers
The concepts used to solve this problem are magnetic field due to a current-carrying wire.
Use the relation between magnetic field due to a current-carrying wire, radial distance, and permeability of free space to find the maximum current in the wire.
The Ampere’s law states that “for any closed loop, the sum of the length elements multiples the magnetic field in the direction of the length element and is equal to the permeability times the electric current enclosed in the closed loop path.
Expression for the magnetic field due to current carrying wire is
Here, the magnetic field is 
, the radial distance is 
, the permeability of free space is 
, and the current is 
.
Expression for the magnetic field due to a current-carrying wire is
Rearrange the above equation to get 
Expression for the maximum current in the wire is
Substitute 
for 
, 
for 
, and 
for 
.
The maximum current in the wire is 
.
Add Answer to:
If an electric wire is allowed to produce a magnetic field no
larger than that of...
If an electric wire is allowed to produce a magnetic field no larger than that of...
If an electric wire is allowed to produce a magnetic field no larger than that of the Earth (0.50×10−4T×10−4T) at a distance of 24 cmcm from the wire, what is the maximum current the wire can carry?
If an electric wire is allowed to produce a magnetic field no larger than that of...
If an electric wire is allowed to produce a magnetic field no larger than that of the Earth (0.50×10−4T) at a distance of 20 cm from the wire, what is the maximum current the wire can carry?
If an electric wire is allowed to produce a magnetic field no larger than that of...
If an electric wire is allowed to produce a magnetic field no larger than that of the Earth (0.50×10−4T) at a distance of 22 cm from the wire, what is the maximum current the wire can carry?
If an electric wire is allowed to produce a magnetic field no larger than that of...
If an electric wire is allowed to produce a magnetic field no larger than that of the Earth (0.35×10−4T) at a distance of 28 cm , what is the maximum current the wire can carry?
If an electric wire is allowed to produce a magnetic field no larger than that of...
If an electric wire is allowed to produce a magnetic field no larger than that of the Earth (0.60×10−4T) at a distance of 22 cm , what is the maximum current the wire can carry?
Some pacemakers employ magnetic reed switches to enable doctors to change their mode of operation without...
Some pacemakers employ magnetic reed switches to enable doctors to change their mode of operation without surgery. A typical reed switch can be switched from one position to another with a magnetic field of 5.0×10−4T. What current must a wire carry if it is to produce a 5.0×10−4T field at a distance of 0.50 m?
Part A What is the magnitude of the force per meter of length on a straight...
Part A What is the magnitude of the force per meter of length on a straight wire carrying an 7.90-A current when perpendicular to a 0.70-T uniform magnetic field? Part B What if the angle between the wire and field is 57.0 ∘? Express your answer to two significant figures and include the appropriate units. ------------------------------- An electron is projected vertically upward with a speed of 1.20×106m/s into a uniform magnetic field of 0.590 T that is directed horizontally away...
Problem 20.40 You want to produce a magnetic field of magnitude 5.50 x10^-4T at a distance...
Problem 20.40 You want to produce a magnetic field of magnitude 5.50 x10^-4T at a distance of 4.0 x 10^-2m from a long, straight wire. Part A What current is required to produce this field? Part B With the current found in part A, how strong is the magnetic field 8.00cm from the wire's center?
(9-17)Constants A solenoid is designed to produce a magnetic field of 2.40×10?2 T at its center....
(9-17)Constants A solenoid is designed to produce a magnetic field of 2.40×10?2 T at its center. It has a radius of 2.20 cm and a length of 43.0 cm , and the wire can carry a maximum current of 15.0 A . A_)What minimum number of turns per unit length must the solenoid have?
39. As an electric current flows through a wire, a. a magnetic field is generated that...
39. As an electric current flows through a wire, a. a magnetic field is generated that is inversely related to the current. b. magnetic field lines form around the wire that reverse direction when the current is reversed. c. the lines of magnetic force created closest to the wire are the weakest. d. magnetic lines of force are formed around the wire in the same direction regardless of the direction of the current.
Problem 20.40 You want to produce a magnetic field of magnitude 5.50 x10^-4T at a distance of 4.0 x 10^-2m from a long, straight wire. Part A What current is required to produce this field? Part B With the current found in part A, how strong is the magnetic field 8.00cm from the wire's center?
39. As an electric current flows through a wire, a. a magnetic field is generated that is inversely related to the current. b. magnetic field lines form around the wire that reverse direction when the current is reversed. c. the lines of magnetic force created closest to the wire are the weakest. d. magnetic lines of force are formed around the wire in the same direction regardless of the direction of the current.
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago