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Chapter 25: Q. 8 (page 708)

Rank in order, from largest to smallest, the electric potentials Vato localid="1648794905917" Veat points localid="1648794895078" ato localid="1648794890043" ein localid="1648794899983" FIGUREQ25.8.Explain.

Short Answer

Expert verified

The order in electric potentials from largest to smallest,Va=Vb>Vc>Vd=Ve.

Step by step solution

01

Step: 1 Electric field in parallel plate capacitor:

The potential difference is equivalent to the total of current amplified by the resistance (also known as voltage). A potential difference of one Volt equals one Joule of energy when one Coulomb of charge moves between two locations in a circuit.

02

Step: 2 Electric potentials:

The electric field is zero if the potential is constant. The electric field intensity is constant if the rate of change of potential with distance is constant

|螖V|=Es.

Where localid="1648794919736" sis plate distance and localid="1648794924647" Eis electric field constant.

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Most popular questions from this chapter

Physicists often use a different unit of energy, the electron volt, when dealing with energies at the atomic level. One electron volt, abbreviated eV, is defined as the amount of kinetic energy gained by an electron upon accelerating through a 1.0 V potential difference. a. What is 1 electron volt in joules? b. What is the speed of a proton with 5000 eV of kinetic energy?

Two positive point charges q are located on the y-axis aty=卤12s.

a.Find an expression for the potential along the x-axis.

b.Draw a graph of V versus x for -鈭�<x<鈭�. For comparison, use a dotted line to show the potential of a point charge 2qlocated at the origin.

A proton with an initial speed of 800,000m/sis brought to rest by an electric field.

a. Did the proton move into a region of higher potential or lower potential?

b. What was the potential difference that stopped the proton?

A -3.0 nC charge is on the x-axis at x = -9 cm and a +4.0 nC

charge is on the x-axis at x = 16 cm. At what point or points on

the y-axis is the electric potential zero?

A capacitor with plates separated by distance dis charged to a potential difference 鈭�VC. All wires and batteries are disconnected, then the two plates are pulled apart (with insulated handles) to a new separation of distance2d.
a. Does the capacitor chargeQ change as the separation increases?
If so, by what factor? If not, why not?
b. Does the electric field strengthEchange as the separation increases? If so, by what factor? If not, why not?
c. Does the potential difference 鈭�VCchange as the separation increases? If so, by what factor? If not, why not?
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