_____ is an arrangement that is always in contact with the slip rings, which allows current to flows to the external circuit.

Armature

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Commutator

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Brush

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Field magnet

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Solution

The correct option is C
Brush

An AC generator is an electric generator that converts mechanical energy into electrical energy by the principle of Electromagnetic Induction.

Brushes are always in contact with slip rings (refer to the given image). The slip rings allow the transfer of alternating emf induced in the rotating coil to the external circuit. Each ring is connected to one end of the coil wire and is electrically connected to the external circuit via the conductive carbon brushes.

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Similar questions

Q. Question 11
To convert an AC generator into DC generator

(a) split-ring type commutator must be used
(b) slip rings and brushes must be used
(c) a stronger magnetic field has to be used
(d) a rectangular wire loop has to be used

In the figure given below, a coil is placed between two permanent magnets and it is rotated with the help of an axle, on which two rings R1 and R2 are internally attached. B1 and B2 represents metallic brushes. G represents galvanometer.

The current flowing through the circuit reverses direction periodically, such a current is called alternating current. The current can be made direct by ___.

When a coil is rotated in a magnetic field and is connected to a circuit using slip rings, the direction of current in the circuit:

Q.
When the loop becomes perpendicular to the magnetic field, no current flows through it momentarily as the brush loses contact with the split rings. Then why doesn't the motor stop in this position? IS IT DUE TO THE MOMENTUM PRESENT IN THE LOOP??

Q. What are brushes in an electric motor
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