# Who accidentally discovered that a compass needle will got deflected when an electric current flows nearby?

## Who accidentally discovered that a compass needle will got deflected when an electric current flows nearby?

Hans Christian Oersted
Hans Christian Oersted, one of the leading scientists of the 19th century, played a crucial role in understanding electromagnetism. In 1820 he accidentally discovered that a compass needle got deflected when an electric current passed through a metallic wire placed nearby.

### Who observed for first time that when an electric current passes through the wire a magnetic field is produced around that wire?

Oersted
4.1 Oersted Experiment In 1820, Oersted established the relationship between electricity and magnetism. He concluded that a current carrying wire produces a magnetic field around it.

#### Who first noticed a compass needle moved from North when placed near an electric current?

This was discovered on 21 April 1820 by Danish physicist Hans Christian Ørsted (1777–1851), when he noticed that the needle of a compass next to a wire carrying current turned so that the needle was perpendicular to the wire.

Who was the first person to observe deflection of compass needle when current passes through a nearby wire?

Hans Christan Oersted
The scientist named ‘Hans Christan Oersted’ noticed the deflection of compass needle when the current passed through the wire.

Who observed magnetic effect of electric current?

The magnetic effect of electric current was discovered by Hans Christian Oersted in the year 1982. On 21 April 1820, Oersted published his discovery that a compass needle was deflected from magnetic north by a nearby electric current, confirming a direct relationship between electricity and magnetism.

## Who discovered magnetic effect?

Hans Christian ørsted
Complete Step by step solution The magnetic effect of electric current was discovered by Danish Physicist, Hans Christian ørsted (Oersted) in the year 1820.

### Who said the compass needle move near the current carrying wire this shows electric current creates magnetic field?

Oersted found the direction of the magnetic field around a wire carrying current by placing a in many places around the wire. Oersted wanted to learn more about the magnetic field created by a current. He placed a compass at different locations around a wire with current flowing through it.

#### How does the compass needle move when the compass is below the wire above the wire?

Electricity moved the compass needle which means electricity generates magnetic fields. So the magnetic field direction is different above and below the wire. This happens because there is actually a magnetic field created which goes around the wire. The compass needle continues to point magnetic north.

Who discovered the magnetic field around a wire?

Around 1830, Michael Faraday discovered that a magnetic field can generate an electric current if a conductor crosses the lines of force in a magnetic field. This is known as Faraday’s law. 1.

Which rule predicts the direction of deflection of the magnetic needle in the Oersted experiment?

He defined the conventional direction of the current outside the battery and invented the observer’s rule on the wire to predict the magnetic needle’s direction of deflection, now known as the “man-of-Ampere” rule.

## When an electric current flows through a wire the wire gets?

When an electric current flows through a wire, the wire gets heated ( heating effect of current) and a magnetic field is produced around it ( magnetic effect of current). When an electric current is passed through any wire, a magnetic field is produced around it.

### Who first observed the magnetic effect of current?

Hans Christian Oersted discovered the magnetic influence of the current in the year of 1820 and noticed that a wire carrying a current could deflect a magnetic needle.

#### Who first noticed the deflection of the compass needle?

Hans Christian Oersted was the first person who noticed the deflection of compass needle every time the current was passed through the wire. When an electric current flows through a wire, it behaves like a magnet. A current carrying coil of an insulated wire wrapped around a piece of iron is called an electromagnet.

Why does a compass needle move when placed near an electric current?

Why does a compass needle move when placed near a wire carrying an electric current? True… The wire carring current creates a slight magnetic field. My answer is that when the current of electricity is interacting with the compass. The compass will help and kind of produce with the electric current.

Why did my compass not react to the wire?

Your compass did not react to the wire because the wire by itself emitted no magnetic field. In step 2, when you placed the compass under the wire, the needle deflected because the wire was now carrying an electric current generated by the battery, and current-carrying wires have a magnetic field around them.

## How does a compass create a magnetic field?

The wire carring current creates a slight magnetic field. My answer is that when the current of electricity is interacting with the compass. The compass will help and kind of produce with the electric current. This is my answer.