There are several variables:
First and most important, what will be the current draw? If the total number of amps exceeds the rating of either the power strip or the extension cord you're creating a fire hazard.
Second, the wire gauge and length of the extension are important. You will loose voltage over distance and that is a function of the current draw, wire type and wire gauge. If you're trying to run 20 amps, don't use any less than a 12 gauge extension cord up to a maximum of 100 Ft. 15 amps, minimum 14 gauge.
An extension cord is a long power cord that plugs into an outlet and receives with an outlet. A computer cord just uses one long cable to transfer power to the computer from the outlet.
The most number of outlets on a multi outlet extension cord are six. Any more then six outlets on an outlet extension cord and it would become dangerous.
You could use an extension cord.
You should know the maximum current drawn from the distribution box (in amps) and that must be less than the current that the extension cord is able to supply.
There are several parts to an extension cord. There is the "female" end where you would plug in the appliance, the cord, and then the "male" end which gets plugged into an outlet.
It may work but will probably surge it...power coming in from both directions
You have to get an extension cord and plug them into it and then plug the extension cord somewhere in your house, if you do not have some type of outdoor outlet. You might try to get the extension cord through a window and then close the window as much as possible.
Are you saying that you plug in a lamp and another lamp on that extension cord goes dimmer? If so then the extension cord wire is of a smll guage size and causing a voltage drop from the outlet to the cord output.
You use a known ground and check them for voltage. You can use an extension cord to reach from a ground to the wires you are testing. You are not putting it in an outlet, just to connect you to a ground.
When the outlet is more than 40 feet away, or when you are operating 2 or more tools from it.
A break in the electrical wiring inside the cord - usually it is right by the male end that you are plugging in to power - so a replacement end can be put on the block heater cord ( those flames sure can startle a person ! ) After it happened to me , I always made sure that I plugged my block heater cord into my extension cord before I plugged my extension cord into the electric outlet
I would use a 12/3 cord especially if your going 50ft or more from the outlet.