What is the significance of potential in electromagnetic field? What is an electric field simple definition? Why is the electric field inside a conductor zero? What is meant by electric field intensity? Why induced electric field is non-conservative? Why electric current is a scalar quantity? Wha...
voltage v (t) across an inductor with inductance L and the time-varying current i (t) passing through it is described by the differential equation: v(t) = L \frac{di(t)}{dt} When there is a sinusoidal alternating current (AC) through an inductor, a sinusoidal voltage is induced. htt...
What is an induced magnetic field? Is magnetism a physical property? What is the magnetic field of a bar magnet? What is mu in Faraday's law? What creates a magnetic force? What is a static magnetic field? What are two ways that magnetism is produced?
Inductance is defined as the property of an electric conductor which causes an electromotive force that is generated due to a change in the current flow. There are two types of inductance: self-inductance and mutual inductance.
The electric fields surrounding a power line can be as high as 10 kilovolts per meter, but the corresponding field induced in human cells will be only about 1 millivolt per meter. This is far less than the electric fields that the cells themselves generate. How could such minuscule forces ...
Inductance property is found in most of the electric coils, where an induced emf is generated in a coil when there is a change in flux. In simple terms, this is known as the induction effect. However, talking about the measure of this property, various units are used. We will look at...
The reason is that, when voltage or potential difference is applied across an inductor, the electric current flowing through an inductor produces a magnetic field. This magnetic field again creates an induced electric current in the inductor but of opposite polarity, according’s to Lenz’s law....
It is interesting to think of how much of electrical power is generated by spinning and moving magnets. We are able to easily transmit electric power to spinning mechanisms, which generate a larger electromagnetic force by moving a magnet in a circular motion. This phenomenon of electromagnetic fo...
When a voltage is applied across the terminals of an inductor, the current flowing creates a magnetic field. This magnetic field again creates an induced current in the inductor of opposite polarity, according to Lenz’s law. The currents do not cancel each other out – rather, the induced ...
It is interesting to think of how much of electrical power is generated by spinning and moving magnets. We are able to easily transmit electric power to spinning mechanisms, which generate a larger electromagnetic force by moving a magnet in a circular motion. This phenomenon of electromagnetic fo...