Questions and Answers
What is the formula to calculate torque?
R cross F
In an electric motor, what keeps the current-carrying loop rotating?
Magnetic field
What happens when the loop in an electric motor is slightly moved from the equilibrium point?
It experiences forces pushing it back to equilibrium
Which position results in unstable equilibrium for a loop in a magnetic field?
Signup and view all the answers
What is the torque of a current (I) times area (A) times magnetic field (B) known as?
Signup and view all the answers
How does switching the direction of the current in an electric motor affect the loop?
Signup and view all the answers
When is there no torque on a current-carrying wire in a magnetic field?
Signup and view all the answers
What causes a torque on a magnetic dipole?
Signup and view all the answers
What is used in an electric motor to change the direction of forces acting on a current-carrying loop?
Signup and view all the answers
In which position is there stable equilibrium for a loop in a magnetic field?
Signup and view all the answers
