Αποτελέσματα Αναζήτησης
4 ημέρες πριν · This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to use the formula 𝑉 = 𝐼𝑅 (Ohm’s law) to work out the values of the potential difference, current, and resistance in simple circuits.
3 ημέρες πριν · Electricity, phenomenon associated with stationary or moving electric charges. Electric charge is a fundamental property of matter and is borne by elementary particles. In electricity the particle involved is the electron, which carries a negative charge.
4 ημέρες πριν · The power of an electric component in a circuit is equal to the energy the component transfers over the time taken for the transfer to occur. This power, 𝑃, equals the current through the component multiplied by the potential difference, 𝑉, across it: 𝑃 = 𝐼 × 𝑉. By Ohm’s law, 𝑉 = 𝐼 × 𝑅.
3 ημέρες πριν · Electricity - Alternating Current, Circuits, AC: Certain circuits include sources of alternating electromotive forces of the sinusoidal form V = V0 cos(ωt) or V = V0 sin(ωt). The sine and cosine functions have values that vary between +1 and −1; either of the equations for the voltage represents a potential that varies with respect to time ...
4 ημέρες πριν · In this explainer, we will learn how to describe the application of the motor effect to the measuring of electric current by a moving-coil galvanometer. When a current passes through a wire, a magnetic field is produced around the wire.
3 ημέρες πριν · Piezoelectricity. Some solids, notably certain crystals, have permanent electric polarization. Other crystals become electrically polarized when subjected to stress. In electric polarization, the centre of positive charge within an atom, molecule, or crystal lattice element is separated slightly from the centre of negative charge.
5 ημέρες πριν · Electric Bulb: Understanding the definition of Electric Bulb by solving questions using real-time examples and facts.
