Class 12 Physics Test Electricity, Moving Charge and Magnetism FM 25

 

Class 10 CBSE Physics Magnetic Effect of Current Test FM 20

 

Class 12 | Physics | Moving Charge | A disc of mass m, radius r and carrying charge q is rotating with angular speed o about an axis passing through its centre and perpendicular to plane, then magnetic moment is​

 

Class 12 | Moving charge and Magnetism | A charged particle is whirled in a horizontal circle by attaching it to a string fixed at one point. If a magnetic field is switched on in the vertical direction, the tension in the string

A charged particle is whirled in a horizontal circle by attaching it to a string fixed at one point. If a magnetic field is switched on in the vertical direction, the tension in the string

(1) Will increase

(A) B

(2) Will decrease

(3) Will remain the same

(4) May increase or decrease

Class 12 | Moving Charge and Magnetism | Find the time When charge block loose contact on smooth incline plane