How does Charle's law relate to breathing? What is the ideal gas law constant? How do you calculate the ideal gas law constant? How do you find density in the ideal gas law? Does ideal gas law apply to liquids? Impact of this question views around the world.
You can reuse this answer Creative Commons License. Active 3 years, 10 months ago. Viewed 3k times. An ideal voltage meter is also spherical, has zero mass and homogenous density, and its display always points at the viewer.
Every resistor you ever buy will not perfectly obey ohm's law. Also: no ideal capacitors, inductors, voltage sources, current sources, or switches. Am I correct? Add a comment. Active Oldest Votes.
That said, there are ways to measure DC voltage with a nearly infinite input impedance. Kevin Reid Kevin Reid 6, 1 1 gold badge 22 22 silver badges 39 39 bronze badges. It's a conceptual idea. A moving coil voltmeter can't be ideal since it requires some current to operate the coil.
Simon B Simon B A good voltmeter would draw as little as possible. Am I missing something? If there's zero current flowing through the voltmeter circuit, then there's zero voltage at the measurement point. So on the 20v range, I'd have a series resistor of 1Meg. Spehro Pefhany Spehro Pefhany k 12 12 gold badges silver badges bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Solution : A voltmeter is used to measure the potential difference across the two points of a circuit.
For it, the voltmeter is connected in parallel across those two point. The potential difference measured by voltmeter will be accurate if no current is drawn by voltmeter. It will be so if the resistance of voltmeter is infinite.
Then the voltmeter will be ideal voltmeter. Thus, ideal voltmeter has infinite resistance. For it, the ammeter is connected in series of the circuit. The current measured by ammeter will be accurate if there is no change in current of the circuit by the use of ammeter in series of circuit. It is possible if resistance is called ideal ammeter. Thus ideal ammeter has zero resistance. National education day: e-learning transforming educational landscape.
0コメント