A straight wire of mass and length carries a current of . It is suspended in mid-air by a uniform horizontal magnetic field What is the magnetic field?
If the magnetic field is parallel to the positive axis and the charged particle is moving along the positive axis Fig. Which way would the Lorentz force be for an electron negative charge
If the magnetic field is parallel to the positive -axis and the charged particle is moving along the positive -axis Fig.. Which way would the Lorentz force be for a proton positive charge ?
What is the radius of the path of an electron (mass and charge ) moving at a speed of in a magnetic field of perpendicular to it? What is its frequency? Calculate its energy in . ( ).
A cyclotron’s oscillator frequency is . What should be the operating magnetic field for accelerating protons? If the radius of its ‘dees’ is . what is the kinetic energy (in ) of the proton beam produced by the accelerator. ,).
A straight wire carrying a current of is bent into a semi-circular arc of radius as shown in Fig . Consider the magnetic field at the Centre of the arc. What is the magnetic field due to the straight segments? Fig.
A straight wire carrying a current of is bent into a semi-circular arc of radius as shown in Fig. Consider the magnetic field at the Centre of the arc. In what way the contribution to from the semicircle differs from that of a circular loop and in what way does it resemble?
A straight wire carrying a current of is bent into a semi-circular arc of radius as shown in Consider the magnetic field at the Centre of the arc. Would your answer be different if the wire were bent into a semi-circular arc of the same radius but in the opposite way as shown in ?