What kind of charge is placed on an empty corner?

A charge +Qis fixed two diagonally opposite corners of a square with sides of length L. On another corner of the square a charge of +5Q if fixed as shown in the Figure. On the empty corner a charge is placed, such that there is no net electrostatic force acting on the +5Q charge. What charge is placed on the empty corner? Answer: −22Q

When is a charge cannot move through a material?

If charge cannot move through a material, such as rubber, then this material is called an insulator. Most materials are insulators. Their atoms and molecules hold on more tightly to their electrons, so it is difficult for electrons to move between atoms.

Is it safe to climb the electric pole?

For safety reasons, you shouldn’t mess with your electric meter or climb the pole that feeds your house. It is, however, a good idea to look them over on occasion. Signs of meter tampering include cut seals around the meter, a meter hanging sideways or upside down and insecure lids or dial covers.

What happens when your electric meter stops spinning?

When you do, your electric meter should stop moving. If it keeps spinning, someone could be stealing your electricity. There are between 120 and 240 volts of electricity running through your electric meter, so don’t try to fix any problems you find yourself.

Are there any electric steps that do not retract?

LED lighting improves visibility and pressure sensitive, anti-pinch technology ensures that it will not retract if there is pressure anywhere on the step. This also cuts power in case of a jam, preventing the motor from burning out. Die-cast aluminum steps can hold up to 600 pounds.

How much weight can a die cast step hold?

Die-cast aluminum steps can hold up to 600 pounds. The anodized and Teflon finish resists corrosion, scratches and dents. Retractable side steps deliver optimal performance in all weather conditions. The stainless-steel pivot pins have self-lubricating bushings, and the protected electric components contribute to zero maintenance requirements.

Why do I need an electric side step?

The increased drop makes cab entry and exit easier for the vertically challenged and the optional extension kit for electric side steps can lower it even more. They have a wider surface than many fixed steps, and they have a non-slip texture, maintaining grip even in wet conditions.