Αποτελέσματα Αναζήτησης
Learn how to calculate the voltage, current, resistance and power in a circuit using Ohms Law formulas and triangles. See examples, diagrams and a pie chart to help you understand the relationships between the circuit components.
Learn how to use the power formula P = IE or P = I 2 R to determine the power dissipation in a circuit with known voltage, current, and resistance. See examples, graphs, and historical notes on Joule's Law and Ohm's Law.
Learn how to calculate power in resistive circuits using Ohm's law and the table method. Power is additive in any circuit configuration and can be measured by the symbol P and the unit W.
If voltage, (V) equals Joules per Coulombs (V = J/C) and Amperes (I) equals charge (coulombs) per second (A = Q/t), then we can define electrical power (P) as being the totality of these two quantities. This is because electrical power can also equal voltage times amperes, that is: P = V*I.
A circuit element dissipates or produces power according to \(P = IV\), where I is the current through the element and \(V\) is the voltage across it. Since the current and the voltage both depend on time in an ac circuit, the instantaneous power \(p(t) = i(t)v(t)\) is also time dependent.
Learn how to calculate power in electric circuits using the formula P = IE, where P is power in watts, I is current in amps, and E is voltage in volts. Understand the difference between power and energy, and how to convert between horsepower and watts.
Learn how to define and calculate electric power in circuits using Ohm's law and the formula P = I V. See examples of power in series, parallel, and complex circuits with resistors and capacitors.
