The purpose of this experiment was to use charged electrodes on conducting paper and voltmeter to discover electric field. The experiment also discovered the relationship between equipotential lines and electric field lines. The purpose of the experiment was to find if the theory that equipotential lines always run perpendicular to electric field lines hold true. The equation used in this experiment is E = ∆V/∆d. The experimental value yielded a result of y = -100x + 10 and the theoretical yielded a -100 V/m.
Another definition for electromagnets are solenoids wound around a central iron core. The magnetic field generated by the coil of wire magnetizes the core, increasing the total field. The difference in simple terms: a solenoid is a long, thin helical loop of wire. An electromagnet is a magnet whose magnetic properties depend on an electric current. A solenoid is just a coil of wire, but when you run a current through it, you create an electromagnet.
The current flows because of the electric potential (V), sometimes referred to as the voltage, applied to a circuit. In much the same way that a gravitational potential will cause mass to move, the electric potential will cause electrons to move. If you lift a book and release it from a height (high gravitational potential) it will fall downward (to a lower potential). The electric potential works in a similar way; if one point of the circuit has a high electric potential, it means that it has a net positive charge and another point of the circuit with a low potential will have a net negative charge. Electrons in a wire will flow from low electric potential with its net negative charge to high electric potential with its net positive charge because unlike charges attract and like charges
Introduction When a charged particle is moving through a magnetic field, it experiences a magnetic Lorentz force given by F ⃗=qv ⃗ ×B ⃗ (1) where q is the charge of the particle, v is the velocity of the charge q and B is the magnetic field. In this experiment, an electron source, which is the heated filament, an electrode and Helmholtz coils are used to generate the magnetic field. Both the electrode and heated filament are placed in a near vacuum container containing a small amount of mercury.
Engineers came up with idea of using different types of fluids that can change its property according to the external forces. For example MR (Magneto-Rheological) fluids and ER (Electro-Rheological) fluids. MR fluids are materials that expose a change in rheological properties such as elasticity, viscosity or plasticity with the application of a magnetic field. On the other hand, ER fluids alters its rheological property when an electric field is applied to the fluid. MR fluids require small voltages and current, while ER fluids require very large voltage and very small currents.
A magnet is a material or object that produces a magnetic field. It is a force that pulls on other ferromagnetic materials, such as iron, and attracts or repels other magnets. A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. Materials that can be magnetized, which are also the ones that are strongly attracted to a magnet, are called ferromagnetic (or ferrimagnetic). These include iron, nickel, cobalt, some alloys of rare earth metals, and some naturally occurring minerals such as lodestone.
Testing the Strength of the Electromagnet by Changing the Number of Coils Aim The aim of this experiment is to investigate how the strength of an electromagnet is affected by the number of coil turns around the iron c-core. Hypothesis As the number of wire coils increases, the strength of the magnetic field (the electromagnet’s strength) will also increase. This means that the number of paper clips that attach to the electromagnet will increase. Explanation of Hypothesis/background: When a DC (Direct Current) electric current flows through a wire, a magnetic field is created. Wrapping the wire in a coil concentrates and increases the magnetic field, because the additive effect of each turn of the wire.
These laws define the motion changes, specifically the way in which those changes in motion are related to force and mass. There are three laws of motion which were introduced by Sir Isaac Newton which are Newton’s First Law , Newton’s Second
Galvanometer gives the deflection which is proportional to the electric current flowing through it. It works as an actuator by producing a rotary deflection. Also, known as a (pointer) in response to electric current flowing through a coil in a constant magnetic
In this theory, he thought of light as a longitudinal wave. This theory states that light is emitted in a series of waves that spread out from a light source is various directions. (Tanbeen, 2014) James Maxwell added to the wave theory of light when he developed the theory of electromagnetism. It is said that light waves consist of both magnetic and electric fields and the fields