Question

Name the law shown in the figure. Label 1 and 2 according to this law.

Answer 1

The right-hand rule of Fleming indicates the direction of the induced current as a conductor in a magnetic field passes connected to a circuit. It may be used to evaluate the current direction in the windings of the generator.

Complete step by step solution:
For electrical generators, the right hand law of Fleming is valid. According to Faraday's electromagnetic induction theory, an emf is generated through the conductor when a conductor is actively driven in an electromagnetic field. The emf induced allows a current to run, when the conductor is presented with a closed path.

The right hand is placed with the thumb, index finger and middle finger jointly opposite to each other (at right angles), as seen in the diagram. The thumb relative to the magnetic field is pointed in the direction of the conductor's motion. Label 1 represents the first finger in the direction of the magnetic field (North-South). The second finger then represented by label 2 shows the direction of the electrical power induced or produced within the conductor (from + to -, the lower electrical potential terminal into the terminal with a higher voltage potential).

Note: Fleming’s right hand rule also stands for FBI, where “F” represents the thumb which shows the Force or Conductor motion, “B” represented by the first finger is the symbol for the magnetic field and “I” is the symbol for current which is represented by the second finger. And we should not confuse between the left hand and right hand rule. The left hand rule is used for electric motors and the right hand rule is used for electric generators.