Magnetic effects of Electric Current

Gap-fill exercise

  
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
1) suggested that the magnet must also exert an equal and opposite force on the current-carrying conductor.
2) The direction of the force on the conductor depends upon the direction of and the direction of the .
3) The displacement of the rod is largest (or the magnitude of the force is the highest) when the direction of current is at angles to the direction of the magnetic field.
4) According to rule, stretch the thumb, forefinger and middle finger of your left hand such that they are mutually perpendicular. If the first finger points in the direction of and the second finger in the direction of , then the thumb will point in the direction of on the conductor.
5) An is a rotating device that converts electrical energy to mechanical energy.
6) The motion of a magnet with respect to the coil produces an induced potential difference, which sets up an electric current in the circuit.This is called .
7) A is an instrument that can detect the presence of a current in a circuit.
8) The induced current is found to be the highest when the direction of motion of the coil is at angles to the magnetic field.
9) The device in which mechanical energy is used to rotate a conductor in a magnetic field to produce electricity is called .
10) A current, which changes direction after equal intervals of time, is called an current.A current which does not change its direction with time is called current.