Magnetic force acting on a unit positive charge moving perpendicular to the magnetic field with a unit velocity is called____________________?

Related Mcqs:

1. When a particle of charge q and mass m enters into a uniform magnetic field B moving with a velocity v perpendicular to the direction for the field it describes a circular path of radius___________________?

   A. R=qB/mV B. R=mV/qB C. R=qmV/B D. R=qmB/V...

2. When an electron moving with a uniform speed in a vacuum enters a magnetic field in a direction perpendicular to the field the subsequent path of the electron is ___________________?

   A. a straight line parallel to the field B. a parabola in a plane perpendicular to the field C. a circle in a plane perpendicular to the field D. a straight line along its initial direction...

3. The charged particle enters the uniform magnetic field in such a way that its initial velocity is not perpendicular to the field the orbit will be__________________?

   A. a circle B. a spiral C. an ellipse D. helix...

4. An electron enters a region where the electric field E is perpendicular to the magnetic field B. It will suffer no deflection if_________________?

   A. E = BeV B. B = eE/V C. E = BV D. E = BeV/2...

5. If the plane of the rectangular coil is parallel to the magnetic field (i.e radial magnetic field) the torque on the coil is_____________________?

   A. τ = NIAB cosφ B. τ = NIAB sinφ C. τ = NIAB tanφ D. τ = NIAB...

6. A current carrying conductor is placed in a uniform magnetic field parallel to it. The magnetic force experienced by the conductor is _____________________?

   A. F=1/B B. F=1/Bsinθ C. F/0 D. F=1/Bcosθ...

7. What is the value of the current in a wire of 10cm long at the right angle to a uniform magnetic field of 0.5 Weber/m2 when the force acting on the wire is 5N ?

   A. 1A B. 10A C. 100A D. 1000A...

8. Two automobiles are 150 kilometers apart and traveling toward each other. One automobile is moving at 60km/h and the other is moving at 40km/h mph. In how many hours will they meet?

   A. 2.5 B. 2.0 C. 1.75 D. 1.5 E. 1.25 Submitted by: Mansoor Ul Haque...

9. A particle of mass m charge q and speed V enters a uniform magnetic radius r. The radius r of the circle is_________________?

   A. independent mass m B. directly proportional to m C. directly proportional to q D. directly proportional to B...

10. The physics of moving charge particles is known as__________?

    A. Plasma physics B. Electro-static’s C. Electro-magnetic D. Electro-dynamics...