Objective Question Papers
Chapter 4: MOVING CHARGES AND MAGNETISM
Que 1: According to Biot-Savart law, moving electrons having velocity ’v’ produce magnetic field B such that
Que 2: If an electron is projected with uniform velocity along the axis of a current carrying a long solenoid. Which of the following statements satisfy it?
Que 3: If an alpha particle projected towards the north is deflected towards the East by a magnetic field. What will be the direction of a magnetic field?
Que 4: Magnetic field can be produced due to ____
Que 5: Magnetic field can be produced due to ____
Que 6: Biot-Savart law indicates that the moving electrons (velocity v) produce a magnetic field B such that
Que 7: A current-carrying loop is placed in a uniform magnetic field. The torqe acting on it does not depend upon
Que 8:A particle of charge e and mass m moves with a velocity v in a magnetic field B applied perpendicular to the motion of the particle. The radius r of its path in the field is
Que 9:The magnetic moment of a current I carrying a circular coil of radius r and number of turns N varies as
Que 10:SI unit of the magnetic field is _________.
Que 11:When the charged particles move in a combined magnetic and electric field, then the force acting is known as _________.
Que 12:Magnetic field at any point inside the straight solenoid is given as———-
Que 13:Cyclotron is a device used to _________.
Que 14:1 Gauss =
Que 15:orentz force is given by the formula
Que 16:The concept of displacement current was introduced by _________.
Que 17:A charged particle is moving in a cyclotron, what effect on the radius of path of this charged particle will occur when the frequency of the ratio frequency field is doubled?
Que 18:Which of the following is not correct about cyclotron?
Que 19:The nature of parallel and anti-parallel currents are
Que 20:A current carrying loop is placed in a uniform magnetic field. The torqe acting on it does not depend upon
