science

How large a current would a very long, straight wire have to carry so that the magnetic field 2 cm from the wire is equal to 1 G (comparable to the earth’s northward-pointing magnetic field)?

  1. 👍
  2. 👎
  3. 👁
  1. why earth has only a limited amount of land

    1. 👍
    2. 👎
  2. 10 A

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    A loop of wire (resistance = 2.0 m) is positioned as shown with respect to a long wire which carries a current. If d = 1.0 cm, D = 6.0 cm, and L = 1.5 m, what is the magnetic flux (in Wb )in the loop at an instant when the

  2. Physics

    A 550 turn solenoid is 15 cm long. The current in it is 33 A. A 3.0 cm long straight wire cuts through the center of the solenoid, along a diameter. This wire carries a 22 A current downward( and is connected by other wires that

  3. Physics

    A long, straight wire carrying a current of 317 A is placed in a uniform magnetic field that has a magnitude of 7.69 × 10-3 T. The wire is perpendicular to the field. Find a point in space where the net magnetic field is zero.

  4. college physics

    A long, straight, cylindrical wire of radius R carries a current uniformly distributed over its cross section. 1. At what location is the magnetic field produced by this current equal to quarter of its largest value? Consider

  1. Physics - Verification

    Two long straight parallel wires separated by a distance of 20 cm carry currents of 30 A and 40 A in opposite directions. What is the magnitude of the resulting magnetic field at a point that is 15 cm from the wire carrying the

  2. Physics

    Suppose a straight 1.60mm -diameter copper wire could just "float" horizontally in air because of the force due to the Earth's magnetic field B⃗ , which is horizontal, perpendicular to the wire, and of magnitude 4.2×10−5T .

  3. physics

    Two very long, straight, parallel wires carry currents that are directed perpendicular. Wire 1 carries a current I1 into the page (in the -z direction) and passes through the x axis at x = +a. Wire 2 passes through the x axis at x

  4. physics

    The magnitude of the magnetic field produced by a long straight current-carrying wire is: proportional to both the current in the wire and the distance from the wire proportional to the current in the wire and inversely

  1. physic

    A long straight horizontal wire carries a current = 3.90 A to the left. A positive 1.00 C charge moves to the right at a distance 1.50 m above the wire at constant speed v = 5000 m/s. What is the magnitude of the magnetic field at

  2. Physics

    A long straight horizontal segment of wire with 0.060 m traverses a west magnetic field with 2.0 T. If a south current with 4.0 A flows through the wire, which one of the following statements concerning the effect of the magnetic

  3. Physics

    A long horizontal wire carries a current of 48A . A second wire, made of 2.6mm diameter copper wire and parallel to the first, is kept in suspension magnetically 15cm below(Figure 1) . Determine the magnitude of the current in the

  4. Physics 2

    The wire in the figure below carries a current of 13 A. Suppose that a second long, straight wire is placed right next to this wire. The current in the second wire is 26 A. Use Ampère's law to find the magnitude of the magnetic

You can view more similar questions or ask a new question.