A wattmeter is used to measure the power of a load.
apparent power
-watt
power
A scalar quantity is a non-vector quantity. In a vector quantity, direction is relevant. In a scalar quantity, it is not. For example, mass (measured in kg.) is a scalar; force is usually indicated as a vector (magnitude in Newton, but the direction is also relevant).A scalar quantity is a non-vector quantity. In a vector quantity, direction is relevant. In a scalar quantity, it is not. For example, mass (measured in kg.) is a scalar; force is usually indicated as a vector (magnitude in Newton, but the direction is also relevant).A scalar quantity is a non-vector quantity. In a vector quantity, direction is relevant. In a scalar quantity, it is not. For example, mass (measured in kg.) is a scalar; force is usually indicated as a vector (magnitude in Newton, but the direction is also relevant).A scalar quantity is a non-vector quantity. In a vector quantity, direction is relevant. In a scalar quantity, it is not. For example, mass (measured in kg.) is a scalar; force is usually indicated as a vector (magnitude in Newton, but the direction is also relevant).
Gas can be measured by volume (in litres), by mass (in grams/kilograms etc or, in chemistry a mole).
Thickness of door is not measured in km. Kilometer is a big quantity.
Bulb brightness is measured in lumens which express the amount of light produced, while the electric power used is measured in watts. The typical efficiency of some different types of bulb is: Incandescent 12 lumens per watt Halogen 17 lumens per watt CFL (compact fluorescent) 50-60 lumens/watt LED (light-emitting diodes) 90-100 lumens/watt.
Different technologies produce different amounts of light - measured in lumens - for a given amount of electric power - measured in watts. Incandescent: 12 lumens per watt Halogen: 16 lumens per watt CFLs: 50-60 lumens per watt LEDs: 100-120 lumens per watt
James Watt measured electrical power
Power is a quantity, and the watt is its unit of measurement.
a physical quantity can be measured, like mass; a nonphysical quantity cannot be measured, like feelings or happiness
Current is a basic quantity, measured in amperes.
watt
WindSpeed
ammeter
Air pressure is measured in bar.
Watts. A watt is a joule per second.
In an economy, the quantity of money is measured by the Money Supply. This is the amount of money available in an economy in a specific period of time.
volume
pressure