What is an insulated wire wound in the shape of a helix?

A solenoid

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A toroid

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A spring

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A current generator

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Solution

The correct option is A A solenoid
A solenoid is an insulated wire wound in the shape of a helix. Such coiled conductors are used to make use of the magentic effect of electricity.

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A toroid has a core (non-ferromagnetic) of inner radius 25 cm and outer radius 26 cm, around which 3500 turns of a wire are wound. If the current in the wire is 11 A, what is the magnetic field (a) outside the toroid, (b) inside the core of the toroid, and (c) in the empty space surrounded by the toroid.

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Q. A solenoid is a coil of insulated or enameled wire wound on a rod-shaped form made of solid iron, solid steel, or powdered iron.

State whether this statement is true or false.

Write 1 for True and 2 for False

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What is an insulated wire wound in the shape of a helix?

The correct option is A A solenoidA solenoid is an insulated wire wound in the shape of a helix. Such coiled conductors are used to make use of the magentic effect of electricity.

The correct option is A A solenoid
A solenoid is an insulated wire wound in the shape of a helix. Such coiled conductors are used to make use of the magentic effect of electricity.