7. A conducting sphere of radius a has a charge q. It is enclosed by a conducting shell of radius b with a charge −q as shown in Fig. 4. What is the potential difference V = φ(a) − φ(b)? (A) (B) (C) 0 (D) (E)

11. One kilogram of liquid water at 100° C and 1 atm is vaporized to steam at the same temperature. The latent heat of vaporization of water is 2.3 × 10⁶ J/kg. The steam density at 1 atm is 0.6 kg/m³, and 1 atm is 1.0 × 10⁵ N/m². The volume of liquid water is negligible when compared with that of steam. What is the increase of internal energy? (A) 2.1 × 10⁶ J (B) 2.3 × 10⁶ J (C) 2.5 × 10⁶ J (D) 4.0 × 10⁶ J (E) 1.7 × 10⁵ J

7. A conducting sphere of radius a has a charge q. It is enclosed by a conducting shell of radius b with a charge −q as shown in Fig. 4. What is the potential difference V = φ
(a) − φ
(b)?

(A)
(B)
(C) 0
(D)
(E)

相關試題

相關試卷

7. A conducting sphere of radius a has a charge q. It is enclosed by a conducting shell of radius b with a charge −q as shown in Fig. 4. What is the potential difference V = φ(a) − φ(b)? (A) (B)(C) 0(D) (E)

相關試題

相關試卷

7. A conducting sphere of radius a has a charge q. It is enclosed by a conducting shell of radius b with a charge −q as shown in Fig. 4. What is the potential difference V = φ
(a) − φ
(b)?

(A)
(B)
(C) 0
(D)
(E)