Physics: Magnetic Effects of Electric Current Chapter 13

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What effect does an electric current have on a compass needle?

It causes the needle to rotate

What happens when a straight thick copper wire is placed between the points X and Y in an electric circuit?

The wire behaves like a magnet

How are electricity and magnetism related?

Electricity and magnetism are linked to each other

What is the significance of observing the change in the position of the compass needle when an electric current is passed through the circuit?

It demonstrates the magnetic effect of electric current

What is the relationship between moving magnets and electric effects?

Moving magnets cause electric effects

What did Hans Christian Oersted accidentally discover in 1820?

A compass needle got deflected when an electric current passed through a nearby metallic wire

What is the region surrounding a magnet, in which the force of the magnet can be detected, called?

Magnetic field lines

What do iron filings align themselves along, when placed near a bar magnet?

Magnetic field lines

What happens to a compass when placed near the north pole of a bar magnet?

It points towards the north pole of the bar magnet

What is the unit of magnetic field strength named in honor of Hans Christian Oersted?

Oersted

What is the significance of the deflection of the compass needle when a current is passed through the copper wire?

It demonstrates the production of a magnetic effect by the electric current.

What was the key observation in Activity 13.1 when the compass was placed near the copper wire in the electric circuit?

The compass needle deflected towards the wire.

How is electricity related to magnetism based on the observations from Activity 13.1?

An electric current produces a magnetic effect, linking electricity and magnetism.

What does the deflection of the compass needle near the copper wire demonstrate about electricity and magnetism?

Electricity and magnetism are interconnected phenomena.

What is the main relationship observed between the electric current and the deflection of the compass needle in Activity 13.1?

The electric current generates a magnetic effect that influences the position of the compass needle.

What phenomenon did Hans Christian Oersted accidentally discover in 1820?

The deflection of a compass needle when an electric current passed through a metallic wire

What technology was created based on Hans Christian Oersted's research on electromagnetism?

Radio, television, and fiber optics

What does the alignment of iron filings along the magnetic field lines demonstrate?

The magnetic strength in the region surrounding a magnet

What does the end of a compass needle pointing towards north represent?

North seeking or north pole

In which century did Hans Christian Oersted play a crucial role in understanding electromagnetism?

19th century

Test your understanding of the magnetic effects of electric current as discussed in Chapter 13 of Physics. Explore the relationship between electric current and magnetic fields through practical activities and theoretical knowledge.

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