When does a magnetic field induce maximum EMF in a wire moving with a constant velocity?
A. When the wire is moved at an angle of 60 degrees to the direction of the magnetic field
B. When the wire is moved at right angles to the magnetic field
C, When the wire is moved parallel to the magnetic field
D. When the wire is moved at an angle of 30 degrees to the direction of the magnetic field
Is it B??
The polarity of an electromagnetic can be determined using the second right-hand rule.
A. True
B. False
Is it B?
To determine when a magnetic field induces maximum EMF in a wire moving with a constant velocity, you need to understand Faraday's Law of electromagnetic induction. According to Faraday's Law, the induced electromotive force (EMF) in a wire is maximum when the wire is moved perpendicular (at right angles) to the magnetic field.
Therefore, for the first question, the correct answer is B. When the wire is moved at right angles to the magnetic field, it induces the maximum EMF.
For the second question, the statement says that the polarity of an electromagnetic can be determined using the second right-hand rule. The correct answer is A. True. The second right-hand rule is used to determine the direction of the induced current or magnetic field resulting from electromagnetic induction.