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I assume you are talking about a standard, 120 volt, residential lamppost that uses (all 5) 120 volt bulbs and not something else. If this is true, and you have five lamp sockets in the same fixture, then notice that every lamp socket has a white and a black wire. In order to get the 120 volts to each bulb, the lamp sockets MUST be wired in PARALLEL. You will tie ALL 5 white wires together with the white (neutral) power source wire with a wire nut of correct size. Then do the same with the 5 black wires and the black (hot) power source wire. Make sure to shut off your source wires at the circuit breaker or fuse panel before you start, and double- check the circuit for voltage with an appropriate tester before you start. Always think safety! I hop
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What do you mean by sourcing and sinking?
A sourcing output supplies current or voltage to the load. The output would be hooked to one side of the load, and the other side is grounded. A sinking output works by pulling the voltage or current to ground. In this case, the load is connected to the 'hot' power supply terminal, and the other end is connected to the sinking output. When the output goes active ("goes low"), current flows from the power supply, through the load, then to ground via the output terminal. Sinking outputs are sometimes called 'open collector' outputs. You can visualize it this way: Take a light bulb and hook one lead to the chassis of your car. You just grounded the load. Now take a wire and hook it to the positive battery terminal. When you touch the battery wire to the bulb, it lights. You are 'sourcing' current to the bulb. Now, connect the bulb to the positive battery terminal. Take a wire and connect it to the car's frame (ground). The bulb already has a voltage supply - the positive battery terminal. When you touch the ground wire to the bulb, sinking current to ground, the bulb lights. The big deal here is IC's that sink current typically have much greater current capability than those with sourcing outputs. So why even bother with sourcing outputs? Their main claim to fame is the load can be ground-referenced, which is very desirable in some situations.
What is the shape of the magnetic field that surrounds a current carrying wire?
The shape of the magnetic field created by current flow in a wire will be circular around the wire. The magnetic lines of force "surround" or "wrap around" the wire according to the left hand rule. Grab the wire with your left hand with your thumb extended and pointing in the direction the electrons are flowing. The fingers will be wrapping around the wire in the direction of the magnetic field. Look at the wire "head on" and picture the electrons "coming at you" as you look. The magnetic lines of force will circle around the wire in a clockwise direction. Grab the wire with your left hand as you look "into" that wire and look at your fingers. Clockwise. The magnetic lines of force "circle" the conductor in closed rings. temptress_skkk: In my textbook, it says the "right-hand rule" instead of the "left-hand rule" but it's basically the same thing, only the current is going the opposite way with your right hand instead of your left hand being in its place. it is the right hand rule of thumb not the left hand. and the magnetics line will fade as the square of the distance.
How can you wire and control 3 lights from 1 switch?
This is simple. First the wire coming from the power supply go to the switch. Then it goes to the first , the second and the third light. Since the switch comes first all three light will be controlled by that one switch.
Can you turn a 14-2 wire into a 14-3?
The only way to change a 14-2 wire into a 14-3 wire is to physically remove the 14-2 and replace it with a 14-3.
What is the most common way of making an electrical connections?
The most common way of making an electrical connection is with a device called a wire nut. Solid wire connections should be twisted together with a pair of pliers before installing the wire nut to hold the splice tight. Twisting stranded wire together with a pair of pliers does not allow the wire nut to grip the wires as tight as it should. Stranded wire should be held together side by side (in parallel) and let the wire nut twist the wires together to make a solid splice connection.
