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You travel along a path from location A to location B, moving in the same direction as the direction of the net electric field in that region. What is true of the potential difference VB-VA? (1) VB-VA>0, (2) VB-VA<0, (3) VB-VA=0.

Short Answer

Expert verified

The right answer is option (2). The value of the potential difference isVB-VA<0.

Step by step solution

01

Concept/Significance of the potential difference.

The strength of the field formed by energy placed on the other is measured by the potential difference.

It is frequently measured as the voltage difference between two sites where the voltage must be measured in relation to a known voltage or reference voltage.

02

Determination of the potential difference.

The electric field always points from the positive charge to the negative charge, and as the electric field direction is from point A to B, it is concluded that the positive side is A and B is on negative side. the positive side A has higher potential energy than the negative side B.

The potential difference is given by,

∆V=VA-VBis positive

And,

∆V=VB-VAis negative.

Thus, the right answer is option (2). The value of the potential difference isVB-VA<0.

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Most popular questions from this chapter

You travel along a path from location A to location B, moving in a direction perpendicular to the direction of the net electric field in that region. What is true of the potential difference VB-VA?(1)VB-VA>0,(2)VB-VA<0,(3)VB-VA=0.

The potential difference from one end of a 1-cm-long wire to the other in a circuit is Δ³Õ=VB-VA=1.5 V, as shown in Figure 16.88. Which end of the wire at the higher potential? What are the magnitude and direction of the electric field E inside the wire?

If the kinetic energy of an electron is 4.4×10-18J, what is the speed of the electron? You can use the approximate (non relativistic) equation here.

For each of the following statements, say whether it is true or false and explain why it is true or false. Be complete in your explanation, but be brief. Pay particular attention to the distinction between potential V and potential difference ∆V. (a) The electric potential inside a metal in equilibrium is always zero. (b) If there is a constant large positive potential throughout a region, the electric field in that region is large. (c) If you get close enough to a negative point charge, the potential is negative, no matter what other charges are around. (d) Near a point charge, the potential difference between two points a distance L apart is −E³¢. (e) In a region where the electric field is varying, the potential difference between two points a distance L apart is -(Ef-Ei)L.

The graph in Fig.16.56 shows the electric potential energy for a system of two interacting objects, as a function of the distance between the objects. What system might this graph represent?

(1) Two Protons, (2) Two sodium ions, (3) Two neutrons, (4) Two chloride ions, (5) Two electrons, (6) A Proton and an Electron, (7) A sodium ion and a chloride ion.

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