Two concentric uniformly charged spherical shells of radius \( 10 \mathrm{~cm} \) and \( 20 \mathrm{~cm} \) having charges \( 10 \mathrm{C} \) and \( 20 \mathrm{C} \) on them are arranged as shown in figure. The magnitude of potential difference between the two shells is (1) \( 4.5 \times 10^{11} \mathrm{~V} \) (2) \( 2.7 \times 10^{11} \mathrm{~V} \) (3) 0 (4) None of these 📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live