Physics

A charge q =+ 4.11 x 10 - 9 C is placed at the origin, and a second charge equal to -2q is placed on the x axis at the location x = +1.00 m. (a) Find the electric potential midway between the two charges. (b) The electric potential vanishes at some point between the charges. Find this value of x.

  1. 👍 0
  2. 👎 0
  3. 👁 102
asked by Chloe
  1. Well, it turns out potential is scalar, so you just add. Find where they add to zero.

  2. I don't understand what you're trying to say when you're saying to add. Can you elaborate more?

    1. 👍 0
    2. 👎 0
    posted by Chloe
  3. Vtotal=V1+V2=kq1/x +kq2/x, you know distancex (1/2 of 1), and you know the two q.

    when is potential zero> Set Vtotalt to zero, and solve. one distance x, the other 1-x.

    You can do that.

  4. Ok that makes much more sense. Thank you for your help!

    1. 👍 0
    2. 👎 0
    posted by Chloe

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    A charge of +q is located at the origin, while an identical charge is located on the x axis at x = 0.45 m. A third charge of +4q is located on the x axis at such a place that the net electrostatic force on the charge at the origin

    asked by jenn on January 31, 2010
  2. physics

    A charge of -2q is placed a distance r from the origin and a charge of +2q is placed a distance 2r from the origin. What is the amount of work needed to move a charge of q to the origin from infinity? I don't get the question. And

    asked by Shelly on March 23, 2008
  3. physics

    Consider a charge of +2.0 C placed at the origin of an X-Y co-ordinate system and a charge of -4.0 C placed 40.0 cm to the right. Where must a third charge be placed – between the charges, to the left of the origin, or

    asked by matin on May 15, 2012
  4. Physics 2

    a point charge q1=+9μc is held fixed at the origin. A second point charge with a charge of-5μC and mass of 3.2 x 10^-4 kg is placed on the + x-axis, 0.90 m from the origin. a.) What is the potential energy of the pair of

    asked by Jd del rosario on March 26, 2017
  5. physics

    A point charge Q= 4.60 uC is held fixed at the origin. A second point charge q=1.20 uC with mass of 2.80 * 10^-4 is placed on the x-axis 0.250 m away from the origin. (b) The second point charge is released from rest. What is its

    asked by J on January 28, 2008
  6. science

    three point charges are located on the positive y-axis of a coordinate system.charge q1 = -2.09 nC is 2.05 m from the origin and charge q2 = +2.70 nC is 3.25 m from the origin, and the third charge q3 = -2.56 nC is located 5.03 m

    asked by glen on July 23, 2014
  7. Physics

    A charge q1 = 5 ìC is at the origin. A second charge q2 = -3 ìC is on the x-axis, 0.8 m from the origin. The electric field at a point on the y-axis, 0.5 m from the origin is: I don't understand the question please help . Thanks

    asked by ugh on January 18, 2013
  8. Physics - Electric force, field, and potential

    A 2μC charge is positioned at x = -0.8m and another 2μC charge is positioned at x = 0.8m. A positive test charge of q = 1.28*10^-18C is positioned at the origin x = 0m. Find (a) the electric force exerted on q, (b) the electric

    asked by Kid on February 15, 2017
  9. physics

    A uniform magnetic field of B = 3x10−4 T points in the positive x direction. A charge of 6 μC is fixed at the origin and a charge of −3μC is fixed at (2,0) on the x axis. A charge of 4 μC travels on the y axis at 5.0 x 106

    asked by thegame on August 18, 2010
  10. Physics

    A uniform magnetic field of B = 3x10−4 T points in the positive x direction. A charge of 6 μC is fixed at the origin and a charge of −3μC is fixed at (2,0) on the x axis. A charge of 4 μC travels on the y axis at 5.0 x 106

    asked by thegame on August 19, 2010
  11. university

    Three point charges are placed on the x-axis. A charge of +2.0 ¦ÌC is placed at the origin, −2.0 ¦ÌC to the right at x=50 cm, and +4.0 ¦ÌC at the 100cm mark. What is the magnitude of the electrostatic force that acts on

    asked by zainab on September 19, 2014

More Similar Questions