answersLogoWhite

0

An electrical signal in a copper wire moves roughly at 2/3 the speed of light in a vacuum, so, about 200,000 km/second. Since the Earth has a circumference of about 40,000 km, that means such a signal can go all around the Earth in 1/5 of a second.

User Avatar

Wiki User

7y ago

What else can I help you with?

Continue Learning about Physics

What is an complete circuit?

A circuit is complete whenever current can flow from the battery (or what is producing current), through the circuit, and back to the battery. A complete circuit could contain just a battery and one wire. An incomplete circuit could be a battery with a wire attached to just one terminal, because current cannot flow all the way through the circuit in this case (i.e. cannot flow through the battery). note: not all elements in a circuit may have current flow in a complete circuit. For instance, a light bulb may be shorted but you still have a complete circuit.


Why don't long-shore currents form in places where waves hit the shore head on?

Long-shore currents are generated when waves approach the coast at an angle, causing water to move parallel to the shore. When waves hit the shore head on, there is less tendency for water to move laterally along the coast, resulting in weaker or non-existent long-shore currents.


How long does it take water to travel around the world?

it means you are being in love with something and will follow it around it


How long should you wait before capacitors have completely discharged?

Generally, it is recommended to wait for 5 times the time constant of the circuit for capacitors to completely discharge. This means waiting for about 5RC, where R is the resistance in the circuit and C is the capacitance. However, for safety reasons, waiting for a few minutes to ensure complete discharge is a good practice.


What are some testable questions involving electric currents?

How does the length of a wire affect its resistance in an electric circuit? What is the relationship between the voltage and current in a resistor? How does the number of coils in an electromagnet affect its magnetic strength? What is the effect of changing the type of material in a circuit (e.g. copper vs. aluminum) on the flow of electric current?

Related Questions

How long does its take the blood to complete the circuit of your body?

5 to 4 hours


What is circuit that is complete and unbroken with flowing electric current?

Yes, as long as the unbroken path is a good conductor of electricity.


What happens to a bulb when you move it to the battery on a circuit?

It doesn't matter where the bulb is in respect to the battery, as long as the circuit is complete, the bulb will light up.


A racing car driver can complete one circuit of the track in 5 minutes and 18 seconds How long should it take him to complete 25 laps?

Multiply by 25


Is globe a short vowel or long vowel?

The word globe is a long vowel. It would be a short vowel if the word globe was spelled as "glob". Otherwise, it is a long vowel.


What is an complete circuit?

A circuit is complete whenever current can flow from the battery (or what is producing current), through the circuit, and back to the battery. A complete circuit could contain just a battery and one wire. An incomplete circuit could be a battery with a wire attached to just one terminal, because current cannot flow all the way through the circuit in this case (i.e. cannot flow through the battery). note: not all elements in a circuit may have current flow in a complete circuit. For instance, a light bulb may be shorted but you still have a complete circuit.


How long is a circuit?

A circuit is just as long as a piece of string.


Can electric circuit b completed without earth?

Yes, an electric circuit can be completed without connecting it to earth. The circuit needs a complete path for the current to flow back to the source, so as long as the circuit is properly connected and the electrons can flow through the components, it will work without needing an earth connection.


Does the bulb light up in a parallel circuit?

The bulb will shine as long as it is still part of a complete circuit. You probably have a diagram for such a circuit. See if you can still trace a path through the battery and one of the bulbs without passing through the other bulb. For comparison, try the same thing with a diagram of a series circuit.


A security guard walks the equivalent of six city blocks when he makes a circuit around the building If he walks at a pace of eight city blocks every 30 minutes how long will it take him to complete?

A security guard walks the equivalent of six city blocks when he makes a circuit around the building. If he walks at a pace of eight city blocks every 30 minutes, how long will it take him to complete a circuit around the building, assuming he doesn't run into any thieves?


How long was the globe theatre burnt down for?

the globe theatre burnt down for 1 hour


How long did it take to construct the globe theatre?

it toke 6 month's to construct the globe theatre