The magnetic field around a long straight current carrying wire is? Mark as favorite Copy Link unsymmetrical spherical symmetry cylindrical symmetry cubical symmetry Check Answer
Which of the following is not correct about cyclotron? Mark as favorite Copy Link The operation of the cyclotron is based on the fact that the time for one revolution of an ion is independent of its speed or radius of its orbit. The charged particles and ions in cyclotron can move on any arbitrary path. Cyclotron uses both electric and magnetic fields in combination to increase the energy of charged particles. It is a machine to accelerate charged particles or ions to high energies. Check Answer
The gyro-magnetic ratio of an electron in an H-atom, according to Bohr model, is? Mark as favorite Copy Link neutral positive increases with the quantum number n. independent of which orbit it is in. Check Answer
A current carrying closed loop of an irregular shape lying in more than one plane when placed in uniform magnetic field, the force acting on it? Mark as favorite Copy Link may or may not be zero. is infinite. will be more in the plane where its larger position is covered. is zero. Check Answer
In a cyclotron, a charged particle? Mark as favorite Copy Link slows down within a dee and speeds up between deeps. speeds up in a deep. undergoes acceleration all the time. speeds up between the deeps because of the magnetic field. Check Answer
If the beams of electrons and protons move parallel to each other in the same direction, then they? Mark as favorite Copy Link repel each other. attract each other. neither attract nor repel. no relation. Check Answer
Ampere’s circuital law is equivalent to? Mark as favorite Copy Link Kirchhoff’s law Faraday’s law Biot-Savart law Coulomb’s law Check Answer
A moving coil galvanometer has N number of turns in a coil of effective area A, it carries a current I. The magnetic field B is radial. The torque acting on the coil is? Mark as favorite Copy Link NABI^2 NA^2B^2 I N^2ABI NABI Check Answer
A wire is placed parallel to the lines of force in a magnetic field and a current flows in the wire. Then? Mark as favorite Copy Link it experiences a force in a direction perpendicular to lines of force the wire will experience a force in a direction opposite to the field the wire will not experience any force at all the wire will experience a force in the direction of the magnetic field Check Answer
A particle of mass m and charge q enters a magnetic field B perpendicularly with a velocity v. The radius of the circular path described by it will be? Mark as favorite Copy Link mq / Bv mB / qv mv / Bq Bq / mv Check Answer