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Which of the following could be reasonable explanations for how a piece of invisible tape gets charged? Select all that apply. (1) Protons are pulled out of nuclei in one tape and transferred to another tape. (2) Charged molecular fragments are broken off one tape and transferred to another. (3) Electrons are pulled out of molecules in one tape and transferred to another tape. (4) Neutrons are pulled out of nuclei in one tape and transferred to another tape.

Short Answer

Expert verified

2 and 3.

Step by step solution

01

Significance of the electric field for the invisible tape

The electric field is referred to as a type of electric property that is associated with different points in the space when the charge is present in different forms.

The electric field gives the reason for which the piece of the invisible tape gets charged.

02

Determination of the reason for which the invisible tape gets charged

As the electrons get transferred from one material to a different material, then as the valence shell’s electron of an object is loosely attached, then the shell is being completed by the electrons of other material. Hence, this is the way in which the electrons transfer.

Point 1 states that proton neutrons are being pulled out from the tape. However, this point is incorrect as a massive amount of energy is needed to pull out the proton and a tape cannot do it.

Points 4 states that the neutrons are being pulled out from the tape. However, this point is incorrect as a massive amount of energy is needed to pull out the neutron and a tape cannot do it.

Point 2 states that the charged molecular fragments are broken off one tape and transferred to another. This point is correct as it is easier to break the chemical bonding of the tape that requires less amount of energy which can be possible to charge a tape.

Point 3 directly resembles the above explanation as the electrons can be pulled out from the tape as less amount of energy is needed to pull them out from the tape. Moreover, the energy to pull out the electrons can be obtained only by rubbing the tapes.

Thus, points 2 and 3 are the reasonable explanation for how a piece of invisible tape gets charged.

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Most popular questions from this chapter

A positively charged sphere is placed near a neutral block of nickel, as shown in Figure 14.92. (a) Which of the diagrams in Figure 14.93 best represents the equilibrium distribution of charge on the neutral nickel block?

(b) At location P inside the nickel block the electric field due to the charged sphere is <-625,0,0>N/C. At equilibrium, which of the following statements must be true? (1) It is not possible to determine the electric field at location P due only to charges on the surface of the nickel block. (2) The electric field at location P due only to charges on the surface of the nickel block is <0,0,0>N/C. (3) Because the net electric field at location P is <0,0,0>N/C, the field at P due only to charges on the surface of the polarized nickel block must be <625,0,0>N/C.

You run your finger along the slick side of a positively charged tape, and then observe that the tape is no longer attracted to your hand. Which of the following are not plausible explanations for this observation? Check all that apply. (1) Sodium ions (Na+) from the salt water on your skin move onto the tape, leaving the tape with a zero (or very small) net charge. (2) Electrons from the mobile electron sea in your hand move onto the tape, leaving the tape with a zero (or very small) net charge. (3) Chloride ions (CI-) from the salt water on your skin move onto the tape, leaving the tape with a zero (or very small) net charge. (4) Protons are pulled out of the nuclei of atoms in the tape and move onto your finger.

A solid plastic ball has negative charge uniformly spread over its surface. Which of the diagrams in Figure 14.85 best shows the polarization of molecules inside the ball?

If the distance between a neutral atom and a point charge is doubled, by what factor does the force on the atom by the point charge change?

The diagrams in Figure 14.98 show a sequence of events involving a small lightweight aluminum ball that is suspended from a cotton thread. In order to get enough information, you will need to read through the entire sequence of events described below before beginning to answer the questions. Before trying to select answers, you will need to draw your own diagrams showing the charge state of each object in each situation. (a) A small, lightweight aluminum ball hangs from a cotton thread. You touch the ball briefly with your fingers, then release it (Diagram 1 in Figure 14.98). Which of the diagrams in Figure 14.99 best shows the distribution of charge in and/or on the ball at this moment, using the diagrammatic conventions discussed in this chapter? (b) A block of metal that is known to be charged is now moved near the ball (Diagram 2 in Figure 14.98). The ball starts to swing toward the block of metal, as shown in Diagram 3 in Figure 14.98. Remember to read through the whole sequence before answering this question: Which of the diagrams in Figure 14.99 best shows the distribution of charge in and/or on the ball at this moment? (c) The ball briefly touches the charged metal block (Diagram 4 in Figure 14.98). Then the ball swings away from the block and hangs motionless at an angle, as shown in Diagram 5 in Figure 14.98. Which of the diagrams in Figure 14.99 best shows the distribution of charge in and/or on the ball at this moment? (d) Finally, the block is moved far away. A negatively charged rod is brought near the ball. The ball is repelled by the charged rod, as shown in Diagram 6 in Figure 14.98. Which of the diagrams in Figure 14.99 best shows the distribution of charge in and/or on the ball at this moment?

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