Q:

How does one make a solenoid?

A:

To make a solenoid, you need a hollow cylinder, a battery and lots of conducting wire. The wire must be wound dozens of times around the cylinder, with both ends connected to a battery. This allows the current to flow, replicating the effect of a bar magnet.

  1. Gather your materials

    Determine the size of your solenoid, and arrange for materials accordingly. For a hollow cylinder, arrange for something similar to the cardboard of a toilet roll. Length of the conducting wire should be adequate for three to four dozen winds around the cylinder. Get a battery of an appropriate voltage. In this case, a 5-volt should work fine.

  2. Wind the wire around the cylinder

    Wind the conducting wire in tight, close packing around the cylinder around 40 to 50 times. The ends of the wire should be left loose to connect to the battery.

  3. Complete the circuit, and test the solenoid

    Attach one end of the wire to the positive and one end to the negative terminal of the battery. To test the solenoid, lower a piece of conducting metal or a magnet into the cylinder. Due to the induced magnetic field of the solenoid, the metal piece or magnet should be seen moving inside the cylinder.

Learn More
Sources:

Related Questions

  • Q:

    What is a three phase power supply?

    A:

    A three-phase power supply is a special method to alternate power generation, transmission and distribution. This method establishes power supply delivery in three lines, and each line is a phase that carries equal voltage at equal frequency.

    Full Answer >
    Filed Under:
  • Q:

    What year was electricity invented?

    A:

    Since electricity is a natural occurrence, no one actually invented it. Some people have the misconception that Benjamin Franklin discovered electricity, but in truth, he only connected the dots between electricity and lightning.

    Full Answer >
    Filed Under:
  • Q:

    What is the electromagnetic theory?

    A:

    The electromagnetic theory is a united theory of electromagnetism established by James Clerk Maxwell. This theory primarily discusses the relationships between electric field and magnetic field based from previous observations and experiments related to electricity, magnetism and optics combined.

    Full Answer >
    Filed Under:
  • Q:

    What formula shows relationship between volts, amps and watts?

    A:

    The Watts formula, P=V x I, shows the relationship between volts, amps and watts. The "P" signifies power in watts, "V" denotes voltage in volts and "I" stands for the current in amps. This formula is used in electrical calculations and can be used in conjunction with Ohm's law.

    Full Answer >
    Filed Under:

Explore