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Chapter 29. 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.

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Presentation on theme: "Chapter 29. 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."— Presentation transcript:

1 Chapter 29

2 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

3 1. Positive 2. Negative 3. Zero 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?

4 Rank in order, from largest to smallest, the potential energies U a to U d of these four pairs of charges. Each + symbol represents the same amount of charge. 1. U a = U b > U c = U d 2. U a = U c > U b = U d 3. U b = U d > U a = U c 4. U d > U b = U c > U a 5. U d > U c > U b > U a

5 Rank in order, from largest to smallest, the potential energies U a to U d of these four pairs of charges. Each + symbol represents the same amount of charge. 1. U a = U b > U c = U d 2. U a = U c > U b = U d 3. U b = U d > U a = U c 4. U d > U b = U c > U a 5. U d > U c > U b > U a

6 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.

7 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. A proton is released from rest at point B, where the potential is 0 V. Afterward, the proton

8 Rank in order, from largest to smallest, the potentials V a to V e at the points a to e. 1. V a = V b = V c = V d = V e 2. V a = V b > V c > V d = V e 3. V d = V e > V c > V a = V b 4. V b = V c = V e > V a = V d 5. V a = V b = V d = V e > V c

9 Rank in order, from largest to smallest, the potentials V a to V e at the points a to e. 1. V a = V b = V c = V d = V e 2. V a = V b > V c > V d = V e 3. V d = V e > V c > V a = V b 4. V b = V c = V e > V a = V d 5. V a = V b = V d = V e > V c

10 Rank in order, from largest to smallest, the potential differences ∆V 12, ∆V 13, and ∆V 23 between points 1 and 2, points 1 and 3, and points 2 and 3. 1. ∆V 12 > ∆V 13 = ∆V 23 2. ∆V 13 > ∆V 12 > ∆V 23 3. ∆V 13 > ∆V 23 > ∆V 12 4. ∆V 13 = ∆V 23 > ∆V 12 5. ∆V 23 > ∆V 12 > ∆V 13

11 Rank in order, from largest to smallest, the potential differences ∆V 12, ∆V 13, and ∆V 23 between points 1 and 2, points 1 and 3, and points 2 and 3. 1. ∆V 12 > ∆V 13 = ∆V 23 2. ∆V 13 > ∆V 12 > ∆V 23 3. ∆V 13 > ∆V 23 > ∆V 12 4. ∆V 13 = ∆V 23 > ∆V 12 5. ∆V 23 > ∆V 12 > ∆V 13

12 Chapter 29 Reading Quiz

13 What are the units of potential difference? 1. Amperes 2. Potentiometers 3. Farads 4. Volts 5. Henrys

14 What are the units of potential difference? 1. Amperes 2. Potentiometers 3. Farads 4. Volts 5. Henrys

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

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

17 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.

18 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.


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