The circuit is grounded within the recepticle box. There is no need to ground the actual switch. == ==
This is normally seen in older switch boxes with older devices. new devices are required to have a separate ground just for the device. Grounding a device through a receptacle box no longer meets code. The new code state that both the box and device must be separately grounded. I would recommend replacing the switch with a new one that has a grounding screw. The reasoning for this is twofold. First, grounding through a box to a device is notoriously unreliable and secondly when the device is pulled out of the box by a service person the device loses its ground thus causing a safety issue.
water and electricity.
By 2 way switch I assume you mean a single pole switch. If so yes this can be done.
2way = invoice qnty = po qnty
There are a number of professions in which it would be beneficial to have 2way radios. Professions such as police, ambulance and fire need them to relay information quickly. Also security workers would benefit from them.
hi, very good question got same problem but have now figured that one out simply by 1 2way sw then 3 intermediates then end with 1 2way. bright sparks.
This will probably make more sense if you draw it out. A light has two wires running to it. The switch breaks one of the lines. Draw two lines on a sheet of paper about 2 inches long. Draw a small circle in the middle to represent a light. Extend one of the lines to the light. To the side extend the other line to a box that represents the first switch. From that switch draw two lines to the second switch. Draw one line from the second switch back to the light. That completes the circuit. Power comes into the first switch on the single line and then through one of the two lines between the two switches and out the final single line to the light. It can use either of the two center lines depending on which way the switches are flipped. This makes sense to me, but it may be Greek to you. If you follow the drawing I think it should make sense.
Just walkie-talkie or 2 way radio
It means "Acknowledgement" for more meaning search for "10 codes"
Infinity Kappa is a car speaker that comes in a range of models which are to work out if it will fit ones car. An example on Amazon is an Infinity Kappa 6929i 2Way for just under $97.
A two way radio allows two persons to communicate with each other while separated by some sort of distance. A wireless frequency is used for them to communicate and they must be on the same channel.
Honda F1 car set a land speed record 2way average at Bonneville at 397km/h or aprox. 247mph. It did top out at 413km/h oneway.
Single mode it the method of transmission where device/mechanism can either send or receive in one direction. Radio & TV Broadcasts are examples of Single Mode.Half Duplex is the method where device/mechanism can either send or receive at a time only (capable of sending & receiving). 2way radios are examples of Half Duplex.