Converting Watts to Ohms: How to Calculate Resistance from …
Feb 5, 2007 · To convert watts to ohms, you will need to use the formula W = V²/R, where W is the power in watts, V is the voltage in volts, and R is the resistance in ohms. 2. Why do I need to convert watts to ohms? Converting watts to ohms allows you to calculate the resistance needed for a specific amount of power to be delivered in a circuit.
Understanding Electricity Basics: Volts, Amps, Watts, Ohms
May 22, 2006 · To convert between volts, amps, watts, and ohms, you can use the formulas V = I x R (volts = amps x ohms) and P = V x I (watts = volts x amps). Additionally, there are online calculators and conversion charts available for easy reference. 5. Why is it important to understand volts, amps, watts, and ohms? Understanding volts, amps, watts, and ...
Can Watts Be Converted into Ohms? - Physics Forums
Apr 16, 2008 · To convert watts to ohms, you will need to use the formula: Ohms = Square root of (Watts / Amps). This formula is known as Ohm's Law and is used to calculate the resistance (ohms) of a circuit given the power (watts) and current (amps) values. 2. Why is it important to convert watts to ohms?
Why is the terminology in electrical engineering so redundant and ...
Oct 8, 2014 · I've been trying to brush up on my electrical engineering skills and have been working on the circular and redundant terminology of amps, volt, ohms and watts. It seems to me it all comes down to a quantity of electrons (i.e. coulombs). And, for various reasons perhaps the number of electrons over a period of time (e.g. 1 coulomb per second)
Understanding Ohm's and Watt's Laws: The Contradiction Explained
Jan 24, 2004 · Say a toaster is rated at 900 watts @ 110 V. The resistance of the toaster would be 13.44 ohms (R=E^2/P). If you hooked a 2V source to it, the power dissipated is no longer 900 watts. Since P=E^2/R, the power dissipated by the same toaster @ 2V is only .3 watts.
What is the cause of a lightbulb blowing when switched on?
Oct 18, 2007 · In summary, the lightbulb with a rating of 60 watts and 230 volts has a resistance of approximately 882 ohms. However, when checked with a multimeter, it reads 65 ohms, which is due to the positive temperature coefficient of the filament. When the lightbulb is at its operating temperature, the resistance increases to about 880 ohms.
Designing a display for Watts, Volts and Ohms. - Physics Forums
Feb 8, 2014 · FAQ: Designing a display for Watts, Volts and Ohms. 1. What is the purpose of designing a display for Watts, Volts and Ohms? The purpose of designing a display for Watts, Volts and Ohms is to provide a visual representation of electrical measurements for easy understanding and accurate readings. 2.
How do transformers and Ohm's law contradict each other in basic …
May 24, 2014 · 1. We all know Ohm's law and power conservation, but in a basic transformer, they seem to be contradictory. For example, say we have a 50v source running through a 10Ω wire, then the amperage to the transformer should be 5 A and would come out to 250 watts. Then say the transformer steps the voltage down to 5v, then according to power ...
How Do I Calculate Bleeder Resistors for a 1000V Cap Bank?
Aug 22, 2011 · Resistors. In summary, when calculating the bleeder resistors for a capacitor bank rated for 1000V at 1620 microfarads, it is important to consider the desired bleed down time and the amount of current that can be wasted on the resistor. A high value resistor can be used for a longer bleed down time, but it is important to use a high voltage ...
Is Ohm's Law applicable for only DC or for both? - Physics Forums
Usama Khurram. Dec 12, 2014. Dc Law Ohm's law Ohms law Power calculation. In summary, Ohm's law (V = IR) is valid for both AC and DC circuits, but the actual expression used for AC is J = sigma * E, where J is current density, sigma is conductivity, and E is electric field. For DC, the formula P = VI = V^2/R = I^2*R can be used, while for AC ...