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Who discovered in 1820 that an electric current has a magnetic field?
Hans Christian Oersted discovered in 1820 that an electric current produces a magnetic field. This discovery laid the foundation for the development of electromagnetism and the relationship between electricity and magnetism.
A wire in a lamp that is turned on would have a magnetic field around it?
Yes. Any current will produce a magnetic field. Note that such a field might be hard to detect, for example with a compass - since the AC current used in homes changes directions 50 or 60 times per second. Since this is much faster than the compass needle can follow, it will only show the average magnetic field, which is zero.
Why does voltmeter practically not consume any electric energy from the electric circuit?
A voltmeter has a very high resistance, allowing only a small amount of current to pass through it when measuring voltage. This current is negligible compared to the current flowing through the circuit being measured, so the voltmeter does not significantly affect the circuit or consume much power.
What does the energy carried by an electric current depend on?
The energy carried by an electric current depends on a conductor in order to flow. an Insulator disrupts the flow
What is a device that measures the strength of an electric current?
An ammeter is a device that measures the strength of an electric current. It is usually connected in series with the circuit where the current is to be measured and provides a reading in units of amperes.
Can an electric current be used to affect a compass needle?
Yes, an electric current can affect a compass needle because it creates a magnetic field. When the electric current flows through a wire, it generates a magnetic field around the wire, which can deflect the compass needle and change its direction.
What do you mean by magnetic affect of electric?
The magnetic effect of electric current is known as electromagnetic effect. It is observed that when a compass is brought near a current carrying conductor the needle of compass gets deflected because of flow of electricity. This shows that electric current produces a magnetic effect.
Why is a compass able to find an electric current?
A compass can detect an electric current because a moving electric charge produces a magnetic field around it. When an electric current flows through a wire, it creates a magnetic field that can be detected by the compass needle. This phenomenon is known as electromagnetism.
Does an electric current affect weight?
No, an electric current does not affect weight.
Who is known for his research in electricity and magnetism?
Hans Christian Oersted. In 1820, he discovered that an electric current could affect a compass needle.
How did Oersted discover the relationship between an electricity and magnetism?
Hans Christian Oersted discovered the relationship between electricity and magnetism in 1820 when he observed that an electric current flowing through a wire caused a nearby compass needle to deflect. This observation demonstrated that an electric current produces a magnetic field.
An electric current cannot be used to deflect a compass needle?
An electric current can be used to deflect a compass needle. When an electric current flows through a conductor, it generates a magnetic field around it, which can interact with the magnetic field of the compass needle, causing it to deflect. This principle is the basis for electromagnetism.
What is an electrical current that produces a magnetic field?
The deflection of a magnetic compass in the presence of an electric current, is evidence that an electric current produces a magnetic field.
What is evidence that an electrical current produces a magnetic field?
The deflection of a magnetic compass in the presence of an electric current, is evidence that an electric current produces a magnetic field.
What happens to the needle of a compass as a wire carrying electric current is placed across it?
The needle of a compass will deflect from its original position when a wire carrying an electric current is placed across it. This is due to the magnetic field created by the current in the wire, which interacts with the magnetic field of the compass needle, causing it to move.
Can a electric current be used to deflect a compass needle?
Yes, an electric current can generate a magnetic field that can deflect a compass needle. This phenomenon is known as electromagnetism and is the basis for how devices such as electromagnets and speakers work.
True or False an electromagnet is created when electric current flows through a compass needle?
The real question should be how do you get current to flow through a compass needle.
