How does the split ring commutator change the direction of the current?
The split ring commutator reverse the current in the armature every half revolution when the commutator changes contact from one brush to another. This reverse in current causes the forces acting on the coil to be reversed. This helps the coil continue to rotate in a clockwise direction.
Do the direction of magnetic field lines get reverse?
Answer: the direction of magnetic field lines get reversed if the direction of current through the straight copper wire is reversed.
What would happen to the magnetic field around a single piece of wire if the direction of the current was reversed?
Students will see that: a current-carrying wire produces a magnetic field around itself. the field reverses when the current is reversed. the field is stronger with more turns of the wire.
What happens when the direction of a magnetic field is reversed without changing the direction of the current?
\((a)\) If the direction magnetic field is reversed without changing the direction of current then the force will act in the opposite direction to that of the previous direction. \((c)\) If the direction of both the current and magnetic field is reversed then the force remains in the same direction.
How will the direction of force be changed if the current is reversed?
If the forefinger points in the direction of the magnetic field and the middle finger in the direction of the current, then, the thumb points in the direction of the force exerted on the conductor.So, if the current is reversed in the conductor placed in a magnetic field the direction of force is also reversed.
On what factors does the force experienced by the straight current carrying conductor depends?
the factors on which force on current carrying conductor depends are : the strength of magnetic field being passed on the conductor, the current being passed through the conductor, the length of the conductor .
What factors does the force experienced by a current carrying?
Force experienced by a current carrying conductor placed in a uniform magnetic field depends on the following factors: i) Magnetic field strength. ii) Current through the conductor. iii) Length of the conductor.
What are the factors on which Force produced due to magnetic field depends?
Force is directly proportional to length of magnetic field….Factors on which the force acting on current carrying conductor depends
- Strength of Magnetic Field.
- Strength of electric field.
- Length of conductor.
What is meant by electromagnetic induction?
Electromagnetic or magnetic induction is the production of an electromotive force across an electrical conductor in a changing magnetic field. Michael Faraday is generally credited with the discovery of induction in 1831, and James Clerk Maxwell mathematically described it as Faraday’s law of induction.