Question

please tell me answer​

Answer 1

Answer:

ans 1 electric board ans 2 scwerdriwer ans 3 magnet

Answer 2

Answer:

1. electric current

2. magnetic field of iron

3. metalloids

Explanation:

1. Electric current:

• A stream of charged particles, such as electrons or ions, travelling through an electrical conductor or a vacuum is known as an electric current.
• The net rate of electric charge flowing through a surface or into a control volume is how it is calculated.
• Charge carriers, which can be any of a number of particle kinds depending on the conductor, are the moving particles.
• Electrons flowing over a wire are frequently used as charge carriers in electric circuits.
• They can be electrons or holes in semiconductors.
• Ions are the charge carriers in an electrolyte, whereas ions and electrons are the charge carriers in plasma, an ionized gas.
• The passage of electric charge across a surface at a rate of one coulomb per second is measured by the SI unit of electric current, known as the ampere, or amp.
• A standard SI base unit is the ampere (symbol: A).
• The ammeter is a tool used to measure electric current.
• Magnetic fields are produced by electric currents and are applied in motors, generators, inductors, and transformers.
• They result in Joule heating in conventional conductors, which lights up incandescent light bulbs.
• Electromagnetic waves produced by time-varying currents are utilized in communications to transmit information.

2. Magnetic field of iron:

• Small flakes of a ferromagnetic material are known as iron filings.
• Ferromagnetic refers to the property of aligning with a magnetic field, at least for the purposes of this page.
• Given this, displaying the magnetic field of a single bar magnet or a group of bar magnets using iron filings is a great idea.
• Just avoid direct physical contact between the filings and the magnet to prevent permanent adhesion.

3. Metalloids:

• Semimetals, which sometimes refer to metalloids, are materials that exhibit traits of both metals and nonmetals.
• Typically, metalloids are semiconductors, which means that they can conduct and insulate electricity.
• Metalloids are incredibly advantageous as a material for computer chips due to their semi-conducting nature.
• Metalloid elements include Silicon and Boron, for instance.

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