A straight wire 15cm long, carrying a current of 6.0A is in a uniform field of 0.40T. What is the force on the wire when it is at right angle to the field
The pitch of a screw jack is 0.45cm and the arm is 60cm long. If the efficiency of the Jack is 75/π %, calculate the mechanical advantage.
When the downward current flows in a straight vertical conductor, the direction of its magnetic field at a point due north of the wire is?
Aluminium is sometimes used as the leaf of an electroscope because it
The diagram above represents the stress-strain graph of a loaded wire. Which of these statements is correct?
