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Chapter 29

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**The positive charge is the end view of a positively charged glass rod**

The positive charge is the end view of a positively charged glass rod. A negatively charged particle moves in a circular arc around the glass rod. Is the work done on the charged particle by the rod’s electric field positive, negative or zero? 1. Positive 2. Negative 3. Zero STT29.1

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**The positive charge is the end view of a positively charged glass rod**

The positive charge is the end view of a positively charged glass rod. A negatively charged particle moves in a circular arc around the glass rod. Is the work done on the charged particle by the rod’s electric field positive, negative or zero? 1. Positive 2. Negative 3. Zero STT29.1

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**Each + symbol represents the same amount of charge.**

Rank in order, from largest to smallest, the potential energies Ua to Ud of these four pairs of charges. Each + symbol represents the same amount of charge. 1. Ua = Ub > Uc = Ud 2. Ua = Uc > Ub = Ud 3. Ub = Ud > Ua = Uc 4. Ud > Ub = Uc > Ua 5. Ud > Uc > Ub > Ua STT29.2

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**Each + symbol represents the same amount of charge.**

Rank in order, from largest to smallest, the potential energies Ua to Ud of these four pairs of charges. Each + symbol represents the same amount of charge. 1. Ua = Ub > Uc = Ud 2. Ua = Uc > Ub = Ud 3. Ub = Ud > Ua = Uc 4. Ud > Ub = Uc > Ua 5. Ud > Uc > Ub > Ua STT29.2

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**1. moves toward A with an increasing speed. **

A proton is released from rest at point B, where the potential is 0 V. Afterward, the proton 1. moves toward A with an increasing speed. 2. moves toward A with a steady speed. 3. remains at rest at B. 4. moves toward C with a steady speed. 5. moves toward C with an increasing speed. STT29.3

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**1. moves toward A with an increasing speed. **

A proton is released from rest at point B, where the potential is 0 V. Afterward, the proton 1. moves toward A with an increasing speed. 2. moves toward A with a steady speed. 3. remains at rest at B. 4. moves toward C with a steady speed. 5. moves toward C with an increasing speed. STT29.3

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**2. Va = Vb > Vc > Vd = Ve 3. Vd = Ve > Vc > Va = Vb **

Rank in order, from largest to smallest, the potentials Va to Ve at the points a to e. STT29.4 1. Va = Vb = Vc = Vd = Ve 2. Va = Vb > Vc > Vd = Ve 3. Vd = Ve > Vc > Va = Vb 4. Vb = Vc = Ve > Va = Vd 5. Va = Vb = Vd = Ve > Vc

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**2. Va = Vb > Vc > Vd = Ve 3. Vd = Ve > Vc > Va = Vb **

Rank in order, from largest to smallest, the potentials Va to Ve at the points a to e. STT29.4 1. Va = Vb = Vc = Vd = Ve 2. Va = Vb > Vc > Vd = Ve 3. Vd = Ve > Vc > Va = Vb 4. Vb = Vc = Ve > Va = Vd 5. Va = Vb = Vd = Ve > Vc

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Rank in order, from largest to smallest, the potential differences ∆V12, ∆V13, and ∆V23 between points 1 and 2, points 1 and 3, and points 2 and 3. STT29.5 1. ∆V12 > ∆V13 = ∆V23 2. ∆V13 > ∆V12 > ∆V23 3. ∆V13 > ∆V23 > ∆V12 4. ∆V13 = ∆V23 > ∆V12 5. ∆V23 > ∆V12 > ∆V13

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Rank in order, from largest to smallest, the potential differences ∆V12, ∆V13, and ∆V23 between points 1 and 2, points 1 and 3, and points 2 and 3. STT29.5 1. ∆V12 > ∆V13 = ∆V23 2. ∆V13 > ∆V12 > ∆V23 3. ∆V13 > ∆V23 > ∆V12 4. ∆V13 = ∆V23 > ∆V12 5. ∆V23 > ∆V12 > ∆V13

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Chapter 29 Reading Quiz

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**What are the units of potential difference?**

1. Amperes 2. Potentiometers 3. Farads 4. Volts 5. Henrys IG29.1

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**What are the units of potential difference?**

1. Amperes 2. Potentiometers 3. Farads 4. Volts 5. Henrys IG29.1

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**New units of the electric field were introduced in this chapter**

New units of the electric field were introduced in this chapter. They are: 1. V/C. 2. N/C. 3. V/m. 4. J/m2. 5. W/m. IG29.3

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**New units of the electric field were introduced in this chapter**

New units of the electric field were introduced in this chapter. They are: 1. V/C. 2. N/C. 3. V/m. 4. J/m2. 5. W/m. IG29.3

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**The electric potential inside a capacitor**

1. is constant. 2. increases linearly from the negative to the positive plate. 3. decreases linearly from the negative to the positive plate. 4. decreases inversely with distance from the negative plate. 5. decreases inversely with the square of the distance from the negative plate. IG29.4

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**The electric potential inside a capacitor**

1. is constant. 2. increases linearly from the negative to the positive plate. 3. decreases linearly from the negative to the positive plate. 4. decreases inversely with distance from the negative plate. 5. decreases inversely with the square of the distance from the negative plate. IG29.4

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