College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Microscopic view of current
In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the di…
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Q 10 please
the radius of a-6.0 cm and the external spherical shell has radius b-10.0 cm. Suppose spherical capacitor has a total charge Q-5.0μC. If the internal spherical shell has the space between the shells is filled with air. The capacitance of this capacitor (in pF) is: A) 11.1 C) 19.9 Q8. In the figure shown, if R-6.0.2. What the equivalent resistance (in) between the points a and b? A) 10.5 B) 7.0 B) 18.6 C) 6.3 4.0 D) 41.5 D) 14.0 E) 16.7 D) 12.0 E) 5.0 In the circuit shown, if the reading of the voltmeter is 12.0 V and the reading of ammeter is 3.0 mA. Answer the questions 9 and 10. V Q9. The value of the load resistor, R, (in k) is: A) 4.0 B) 1.5 C) 2.0 D) 8.0 Q10. The emf of the battery (e) (in V) is: A) 3.0 B) 6.0 C) 15.0 E) 7.0 E) 18.0 shown, if the current I₁ = 8.00A, and the resistance R=2.00 2. estions 11, 12, and 13. is the value of the current 13 (in A)? Z R a M ا R O b www R E -e + 1+ r = 222 B) 15.00 C) 16.0 D) 13.0 E) -1.00 nat is the value of electromotive force (in V) of the Battery,e? B) 30.5 C) -40.0 D) 56.0 E) 18.5 Q13. What is the power (in W) dissipated in resistor R? 1) 244.5 B) 512.0 C) 12.5 D) 128.0 E) 540.6 14. An electron is moving at 5.0 x105 m/s in the positive x direction. A magnetic field of 0.8T is in the sitive z direction. The magnetic force on the electron is: 5.4x 10-14 N, in the positive y direction x 10-14 N, in the negative z direction x 10-14 N, in the positive z direction 10-14 N, in the negative y direction R www R www b R www v 24.0 V 3.00 ¹26.00 4 R www.b x
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Transcribed Image Text:the radius of a-6.0 cm and the external spherical shell has radius b-10.0 cm. Suppose spherical capacitor has a total charge Q-5.0μC. If the internal spherical shell has the space between the shells is filled with air. The capacitance of this capacitor (in pF) is: A) 11.1 C) 19.9 Q8. In the figure shown, if R-6.0.2. What the equivalent resistance (in) between the points a and b? A) 10.5 B) 7.0 B) 18.6 C) 6.3 4.0 D) 41.5 D) 14.0 E) 16.7 D) 12.0 E) 5.0 In the circuit shown, if the reading of the voltmeter is 12.0 V and the reading of ammeter is 3.0 mA. Answer the questions 9 and 10. V Q9. The value of the load resistor, R, (in k) is: A) 4.0 B) 1.5 C) 2.0 D) 8.0 Q10. The emf of the battery (e) (in V) is: A) 3.0 B) 6.0 C) 15.0 E) 7.0 E) 18.0 shown, if the current I₁ = 8.00A, and the resistance R=2.00 2. estions 11, 12, and 13. is the value of the current 13 (in A)? Z R a M ا R O b www R E -e + 1+ r = 222 B) 15.00 C) 16.0 D) 13.0 E) -1.00 nat is the value of electromotive force (in V) of the Battery,e? B) 30.5 C) -40.0 D) 56.0 E) 18.5 Q13. What is the power (in W) dissipated in resistor R? 1) 244.5 B) 512.0 C) 12.5 D) 128.0 E) 540.6 14. An electron is moving at 5.0 x105 m/s in the positive x direction. A magnetic field of 0.8T is in the sitive z direction. The magnetic force on the electron is: 5.4x 10-14 N, in the positive y direction x 10-14 N, in the negative z direction x 10-14 N, in the positive z direction 10-14 N, in the negative y direction R www R www b R www v 24.0 V 3.00 ¹26.00 4 R www.b x
Expert Solution
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Step 1

Given data: 

Voltage across external resistor R (V) = 12.0 V

Current (I) = 3.0 mA

Internal resistance (r) = 2 Ω

Required:

Emf of the battery (ε)

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