. Advertisement .
..3..
. Advertisement .
..4..
The resistance of the loop in the figure is 0.30 Ω.
......... ADVERTISEMENT ......... ..8..
a) Is the magnetic field strength increasing or decreasing?
b) At what rate (T/s)?
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Part (a)
According to Amperes’ right hand rule, if a person’s right hand wraps around the rod and the current in the loop causes an induced magnetic field, it points out of the page. Because of the induced current, which creates a magnetic force against the charge of the particle, the external magnetic field is entering the page. The magnetic field strength therefore increases.
Part (b)
Ampere’s right-hand rule, Faraday’s law of induction, and Ohm’s laws are the concepts that were used to solve this problem.
First, use Ampere’s right-hand rule to determine the magnetic field strength.
The rate of change in magnetic field can be found by comparing Ohm’s law with Faradays law.
According to the Ampere’s right-hand rule, “The index finger, middle fingers and thumb are held mutually parallel to one another, the index finger indicates the direction and current direction, while the middle finger shows the direction and direction of magnetic fields, and the thumb points at the direction and force exerted on the conducting material”.
Faraday’s law on electromagnetic induction states, “The induced emf of any closed circuit equals the rate of magnetic flux change linked in that closedcircuit.”
Ohm’s law says that at constant temperature, a steady current flows through conductor. This is directly proportional the potential difference in conductor.
This is the Ohm’s Law expression:
acts as the electromotive force. acts as the current while resists.
The rate at which the magnetic flux changes is called the electromotive force.
This is the Faraday’s law for induction:
represents the electromotive force, $6$ the number of turns and $7media_tag_7$ the magnetic flux. $8$ the time.
The square’s area is as follows:
refers to the square loop’s length and breadth, and A refers to the area.
This is the expression for magnetic flux:
B here is the magnetic field.
(a)
According to Amperes’ right hand rule, if a person’s right hand wraps around the rod and the current in the loop causes an induced magnetic field, it points out of the page. Because of the induced current, which creates a magnetic force against the charge of the particle, the external magnetic field is entering the page.
The magnetic field strength therefore increases.
(b)
This is the Ohm’s Law expression:
…… (1)
This is the Faraday’s law for induction:
In the equation above, replace with or with .
…… (2)
Compare equation (1) with (2).
In the equation above, replace with A
Substitute to I, to R, and to find .
Ans: Part A
This will increase the strength of the magnetic field outside.
Part b
The rate of magnetic field change is