What is 60 watts of voltage
How can you explain the difference between watts and volts?
An eight year old student asked me to explain the difference between watts and volts. I'm looking for a very simple explanation for these two terms.
Thanks in advance.
This child's question is not an easy one to answer. It is very difficult to define voltage or power in a simple way. I'll try once and you'll tell me if it's understandable.
We start with a statement:
- A 230V / 60W incandescent lamp that is built into a circuit with a 3V battery does not light up.
- A 230V / 60W incandescent lamp that is connected to a socket via a cable, i.e. to the 230V power supply, lights up.
- A 3.5V / 200mA light bulb (which corresponds to a power of 0.7W) that would be connected to the 230V power supply would be broken immediately (you shouldn't do that under any circumstances).
- A 3.5V / 200mA light bulb that is built into a circuit with a 3V battery lights up.
What can we conclude from this? The voltage on an electrical device (in this case, a lightbulb) indicates how many volts this device will function properly (the applied voltage should be pretty much the same). The wattage on the device, on the other hand, indicates what the device can "deliver" or consume (from an electrical point of view).
To explain the voltage and power, I would suggest using the behavior of water falling down a waterfall as an image (which, by the way, is largely physically correct).
The height from which the water falls corresponds to the tension. A large, heavy waterwheel cannot be driven quickly if a droplet only falls occasionally. A lot of water has to fall down at the same time. On the other hand, if the height is only very small (maybe 1 cm), it won't work either. So you need a sufficiently high altitude and a sufficiently large amount of water.
The power measured in watts is something that is made up of the altitude (corresponding to the voltage measured in volts) and the water flow (the current expressed in amperes) (more precisely, it is the product of both).
You can now follow up on the light bulb example from Edith Saltiel's previous answer: A 230V / 60W light bulb (or a vacuum cleaner, a washing machine, etc.) is like a large, heavy water wheel, a small light bulb like a tiny toy water wheel made of paper . Such a small, light wheel can also be driven with little water that falls from only a small height. If you drop the water on it from too high a height, it will break.
© Sonnentaler / La main à la pâte http://www.sonnentaler.net/
- Can a bodybuilder eat Maggi
- Trust advertising
- Is NH4Cl a neutral salt
- What's worse is fraud or ghosting
- What is bilateral periorbital hematoma
- How much do outsystems cost
- Should dictatorship replace democracy in India
- How much is 450mAh in the battery life
- What is the Kerberos Protocol
- How does technology help student-teacher interactions
- Are electric and gas airsoft guns dangerous?
- What is breaking electroweak symmetry
- Which has more value IQ or wisdom
- Is it really fun to live on an island
- Why is a truth table called that
- Why didn't you vote for Hillary Clinton?
- Squash is the healthiest sport
- How long does it take to drive
- What is a fast acting antidepressant
- What do the Germans think of Portugal
- How much do platinum teeth cost
- ChromeOS will be merged with Android
- Love bites are caused by insects
- Why is the Bible not in chronological order