When a current-carrying conductor is placed in an external magnetic field, the conductor experiences a force perpendicular to both the field and to the direction of the current flow. The direction of this force can be identified using Fleming's Left Hand Rule.
1. What does the thumb symbolise in Fleming's left hand rule?
a. Time
b. Motion
c. Distance
d. Force
2. What does the index finger symbolise in Fleming's left hand rule?
a. Nuclear field
b. Chemical field
c. Electric field
d. Magnetic field
3. What does the middle finger symbolise in Fleming's left hand rule?
a. Current
b. Velocity
c. Time
d. Distance
4. Where is this rule mostly used?
a. Electric motors
b. Electric heaters
c. Electric cars
d. Electric generator
5. What is the purpose of this rule?
a. To find the velocity in a circuit.
b. To find the direction of wire in a circuit.
c. To find the direction of motion in a circuit.
d. To find the time of motion in a circuit.
