it means that there is not external torque that is torque of mg is balanced by torque of induced current.kuruman said:
i have shown how much i have proceeded far.Now i cannot do it further.kuruman said:
And where is the equation that says that? Parenthetically, there are two external torques. What you meant to say is that there is no net torque. Right? This is a torque balance problem. What does one normally do with such problems? Hint: Free body diagram.Physics lover said:
ok i think i got that.The emf to be find out will have its own torque =IBL which will balance the torque of mg and induced current.Am i right?kuruman said:
You are right except that IBL is a force, not a torque.Physics lover said:
Electromagnetic induction is the process of generating an electric current in a conductor by moving it through a magnetic field or by changing the magnetic field around it.
EMF is induced in a rotating rod with mass when the rod moves through a magnetic field, causing the electrons in the rod to experience a force and creating a flow of electric current. The amount of EMF induced depends on the strength of the magnetic field, the speed of rotation, and the length and mass of the rod.
The mass of a rotating rod does not directly affect the amount of EMF induced. However, a heavier rod may require more force to rotate at the same speed, which could affect the amount of EMF induced. Additionally, the mass of the rod may affect its ability to transfer and dissipate heat generated by the induced current.
The faster a rod rotates through a magnetic field, the more EMF will be induced. This is because the rate of change of the magnetic field is greater, leading to a stronger force on the electrons and a higher induced current.
Yes, EMF induction is used in many practical applications, such as generators, electric motors, and induction cooktops. It is also used in scientific experiments to study the relationship between magnetism and electricity.