This nugget explains the construction, mathematical derivations and applications of a potentiometer device.

This nugget explains the construction and working of an important application of electromagnetic induction and AC generator.

This nugget explains Ohm's law and its derivations for a system of resistors in series and parallel.

The video discusses how devices we use every day are connected to the mains electricity supply. It explains the three types of wires present in a plug - the earth wire, the neutral wire and the live wire - and what each of their...

A broken wire means two things; 1. It won’t work properly anymore. 2. It’s dangerous and shouldn’t be used. In this video we’re going to look at wires, the wiring of a plug and why insulation is important. Wires inside walls carry...

The video is a lecture on electric power, specifically on how the rate of energy transfer is defined in an electric circuit. The speaker discusses various equations and concepts relating to power, energy transfer, current, potential...

This is a lecture video explaining how loudspeakers work by utilizing the motor effect, which is when a current-carrying conductor experiences a force when placed in a magnetic field. The video demonstrates this effect on a conductor...

A discussion of resistance, and how to understand it.

An electric current flows when electrons move through a conductor, such as a metal wire. The moving electrons can collide with the ions in the metal. This makes it more difficult for the current to flow, and causes resistance. The length...

This video explains the basics of electricity and circuits, focusing on the concepts of conductors and insulators, voltage, current, and resistance. It uses simple analogies and easy-to-understand language to help viewers grasp these...

What have the Hulk and Spiderman got in common? They both gained their super powers because of radiation. Well, in films and comics at least. In real life, radiation has never given anyone super powers. But when used carefully radiation...

Electricity is transferred from power stations to consumers through the wires and cables of the National Grid. When a current flows through a wire some energy is lost as heat. The higher the current, the more heat is lost. To reduce...

This is a lecture on electromagnetic devices, exploring the real-world applications of electromagnets. The video describes how an electromagnet works, with a solenoid and iron core generating a magnetic field when a current is flowing...

This video explains the difference between series circuits and parallel circuits in electronics. It describes the rules that apply to each circuit and how to calculate the total resistance, current, and potential difference in each case....

When we cut the electricity to an inductor, we get a sudden intense spark across the switch. This is known as inductive kickback or a back EMF and is produced because of Faraday’s Law of Induction. Not mean to be tried at home! The...

Instrumental Analysis: Capacitance 1

Current & Magnetic Fields | Magnetism | Physics | FuseSchool Electromagnets are incredibly useful. They can do all the things a normal magnet can do, but can also be switched on and off. Electromagnets have many uses, from moving cars in...

How exactly do molecular biologists figure out all this stuff we have been learning? How do they do science with huge molecules like DNA and proteins? How can we gather empirical data about such molecules? Let's take a look at one...

What is electrical current? How does electricity work. In this video we learn what is electrical current, alternating current, direct current, ammeters, multimeter, power monitor, GFCI, circuit breaker, fuses, resistors and much much more!

The video explains how an electric current flowing through a conducting wire produces a magnetic field around the wire. The video explores some of the uses of electromagnetism, including electromagnetic lifts used to separate iron and...

This video is a lecture on solenoids and the magnetic field that forms around them. The lecturer explains the concept of magnetic fields and how they can form around conducting wires. They demonstrate how the direction of the current...

Learn the basics about conductors and non-conductors as a part of elements, compounds and measures within the overall topic of properties of matter.

Electrical supplies can be direct current or alternating current. It's referred to as AC/DC but not rock band of course. If the current flows in one direction it is called direct current. Batteries supply DC current to most of your...

This video explains the process of electricity generation on an industrial level. It describes how a voltage and current can be induced in a conductor by moving it relative to a magnetic field, and compares two types of electricity...