The resistance of an ideal voltmeter is infinite. An ideal voltmeter does not draw any current from the circuit it is measuring; therefore, it has infinite resistance. This ensures that it does not affect the circuit being measured and accurately ...
Discussion Forum Latest Questions
In electrical fittings, a wire is connected to ground primarily to provide a safe path for electrical current in case of a fault, such as a short circuit. This connection directs excessive current away from sensitive equipment and prevents electric ...
Copper is mainly used for conducting electricity because its electrical resistance is low. This low resistance allows for efficient transmission of electrical current with minimal energy loss, making copper an ideal material for electrical wiring and components in various applications.
Sodium vapor lamps are often used for street lighting because their light is monochromatic and does not disintegrate when passing through water drops. This makes them effective for visibility and reduces light pollution, enhancing safety and energy efficiency in urban ...
The reason for the elliptical appearance of the Sun and the Moon near the horizon is refraction. When these celestial bodies are close to the horizon, their light passes through a thicker layer of the Earth’s atmosphere, causing their image ...