Question

In: Physics

My question is:  how do you know that perpendicular to the magnetic field is 90 degrees in...

My question is:  how do you know that perpendicular to the magnetic field is 90 degrees in this example? Bc in another problem the circle and the square were both perpendicular to magnetic field (It was 0 degrees).

A circular coil (950 turns, radius ? 0.060 m) is rotating in a uniform magnetic field. At t ? 0 s, the normal to the coil is perpendicular to the magnetic field. At t ? 0.010 s, the normal makes an angle of ? ? 45? with the field because the coil has made one-eighth of a revolution. An average emf of magnitude 0.065 V is induced in the coil. Find the magnitude of the magnetic field at the location of the coil.

Solutions

Expert Solution


Related Solutions

A magnetic field is along the xy plane and the z plane is perpendicular to the...
A magnetic field is along the xy plane and the z plane is perpendicular to the magnetic field. In which plane(s) is the magnetic flux the greatest? Please explain.
How do magnetic flux and magnetic fields relate to magnetic field lines?
How do magnetic flux and magnetic fields relate to magnetic field lines?
A bar magnet is oriented perpendicular to a uniform magnetic field as shown in . Describe...
A bar magnet is oriented perpendicular to a uniform magnetic field as shown in . Describe the force and/or torque on the magnet. There is a net torque on the magnet in a clockwise direction. There is a net torque on the magnet in a counterclockwise direction. There is a net force on the magnet opposite to the direction of the magnetic field (towards the top of screen). There is a net force on the magnet in the direction of...
An electron moves in a circular path perpendicular to a uniform magnetic field with a magnitude...
An electron moves in a circular path perpendicular to a uniform magnetic field with a magnitude of 2.14 mT. If the speed of the electron is 1.48 107 m/s, determine the following. (a) the radius of the circular path ............ cm (b) the time interval required to complete one revolution ............ s
A proton moves perpendicular to a uniform magnetic field B with arrow at a speed of...
A proton moves perpendicular to a uniform magnetic field B with arrow at a speed of 2.20 107 m/s and experiences an acceleration of 1.90 1013 m/s2 in the positive x-direction when its velocity is in the positive z-direction. Determine the magnitude and direction of the field. magnitude_____T direction : +x, -x, +y, -y, +z, -z   
The loop is in a magnetic field 0.22 T whose direction is perpendicular to the plane...
The loop is in a magnetic field 0.22 T whose direction is perpendicular to the plane of the loop. At t = 0, the loop has area A = 0.285 m2.Suppose the radius of the elastic loop increases at a constant rate, dr/dt = 3.45 cm/s . A) Determine the emf induced in the loop at t = 0 and at t = 1.00 s . Express your answer using two sifnificant figures E(0) =   mV   B) Express your answer...
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of...
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.25 V and a current of 2.5 A are induced in the coil. The wire is then re-formed into a single-turn square coil, which is used in the same magnetic field (again perpendicular to the plane of the coil and with a magnitude changing at the same rate). What (a) emf and (b) current are...
Find the radius of an electron's orbit when it moves perpendicular to a magnetic field of...
Find the radius of an electron's orbit when it moves perpendicular to a magnetic field of 0.46 T with a speed of 6.29×105 m/s . Express your answer using two significant figures.
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of...
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.81 V and a current of 3.8 A are induced in the coil. The wire is then re-formed into a single-turn square coil, which is used in the same magnetic field (again perpendicular to the plane of the coil and with a magnitude changing at the same rate). What (a) emf and (b) current are...
You hold a wire coil so that the plane of the coil is perpendicular to a magnetic field vector B.
You hold a wire coil so that the plane of the coil is perpendicular to a magnetic field vector B. Vector Bis kept constant but the coil is rotated so that the magnetic field, vector B , is now in the plane of the coil. How will the magnetic flux through the coil change as the rotation occurs? Check all that apply. The flux is unchanged because the magnitude of vector B is constant. The flux increases because the angle...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT