Still overwhelmed by exam stress? You've come to the right place!
We know exam season has you totally swamped. To support your studies, access Gold Membership for FREE until December 31, 2025! Normally £29.99/month. Just Log In to activate – no strings attached.
Let us help you ace your exams efficiently!
Questions
Single choice
Lenz's Law states that the direction of the induced current in a closed loop due to a changing magnetic flux is such that:
Options
A.It opposes the change in magnetic flux that produced it.
B.It creates a magnetic field perpendicular to the original magnetic flux.
C.It has no effect on the magnetic flux that produced it.
D.It enhances the change in magnetic flux that produced it.
View Explanation
Standard Answer
Please login to view
Approach Analysis
Question recap: Lenz's Law states that the direction of the induced current in a closed loop due to a changing magnetic flux is such that:\nOption 1: 'It opposes the change in magnetic flux that produced it.' This aligns with Lenz's Law, which posits that the induced current creates a magnetic effect that counteracts the cause of......Login to view full explanationLog in for full answers
We've collected over 50,000 authentic exam questions and detailed explanations from around the globe. Log in now and get instant access to the answers!
Similar Questions
A bar magnet is passed through a coil of wire. The induced current is greatest when
Lenz's law is a rule regrading
A plane conducting geometry is placed in a spatially uniform magnetic field such that there is a non-zero magnetic flux through the geometry. From the following statements select all that are true.
A uniform cross-section conductor has a resistance of 2 Ω. The conductor is used to make a rectangular 24 cm x 20 cm loop. The loop is rotated in a uniform magnetic field of 12 T with a rotational speed of 3,064 rpm. The axis of rotation passes through the mid-points of two opposite sides of the ractangular loop, and is perpendicular to the magnetic field. At time instant t = 0 ms, the plane of the loop is perpendicular to the magnetic field. Assume that there are no losses. Therefore, at any time instant, all the mechanical power delivered to the loop is converted into electrical power which is all converted into thermal power. The rotating loop is cooled at a rate that keeps the loop temperature at a constant value. What is the magnitude of the torque needed to rotate the loop at t = 5 ms? Calculate the answer in the units of newton-meter (N.m). Write your answer in decimal form with two digits to the right of the decimal point (e.g. 5.37); do not write any units or sign. Please note: rpm = revolutions per minute ms = milli-second
More Practical Tools for International Students
Making Your Study Simpler
To make preparation and study season easier for more international students, we've decided to open up Gold Membership for a limited-time free trial until December 31, 2025!