Is the following statement true or false? If true, what principle makes it true? If false, give a counterexample or say why. See Figure 14.67.

“The electric field Epointat the center of an induced dipole, due to the point charge, is equal in magnitude and opposite in direction to the electric field Edipoleat the location of the point charge, due to the induced dipole.”

Short Answer

Expert verified

The following statement is trueand the concept of the electric field makes it true.

Step by step solution

01

Significance of the magnitude of the electric field

The electric field is beneficial for an electrically charged particle to exert force on another particle. The electric field is directly proportional to the charge and inversely proportional to the cube of their distances.

02

Determination of the correctness of the statement

The diagram has been provided below:

From the above diagram, it has been identified that the net electric field’s concept is fulfilled as one of the electric fields has been generated in a particular direction and the other in a different direction.Hence, the direction of the EpointandEdipoleare opposite.

The equation of the electric field at the center of an induced dipole due to the point charge is expressed as follows:

Epoint=kqr3=Edipole

Here, is the electric field constant, qis the point charge andr is the distance between the Epoint, and Edipole. Hence, the statement is true and the concept of the electric field makes it true.

Thus, the following statement is trueand the concept of the electric field makes it true.

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Most popular questions from this chapter

You rub a clear plastic pen with wool, and observe that a strip of invisible tape is attracted to the pen. Assuming that the pen has a net negative charge, which of the following could be true? Select all that apply. (1) The tape might be negatively charged. (2) The tape might be positively charged. (3) The tape might be uncharged. (4) There is not enough information to conclude anything.

A very thin spherical plastic shell of radius15 cm carries a uniformly distributed negative charge of 8 nC(8×109 C)on its outer surface (so it makes an electric field as though all the charge were concentrated at the center of the sphere). An uncharged solid metal block is placed nearby. The block is10cm thick, and it is10cm away from the surface of the sphere. See Figure 14.97. (a) Sketch the approximate charge distribution of the neutral solid metal block.

(b) Draw the electric field vector at the center of the metal block that is due solely to the charge distribution you sketched (that is, excluding the contributions of the sphere).

(c) Calculate the magnitude of the electric field vector you drew. Explain briefly. If you must make any approximations, state what they are.

Two small, negatively charged plastic spheres are placed near a neutral iron block, as shown in Figure 14.89. Which arrow (a–j) in Figure 14.89 best indicates the direction of the net electric field at location A?

A student said, “When you touch a charged piece of metal, the metal is no longer charged: all the charge on the metal is neutralized.” As a practical matter, this is nearly correct, but it Isn’t exactly right. What’s wrong with saying that all the charge on the metal is neutralized?

Criticize the following statement: "Since an atom's electron cloud is spherical, the effect of the electrons cancels the effect of the nucleus, so a neutral atom can't interact with a charged object." ("Criticize" means to explain why the given statement is inadequate or incorrect, as well as to correct it.)

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