List I | List II | ||
A. | Kucipudi | I. | Manipur |
B. | Manipuri | II. | Uttar Pradesh |
C. | Odissi | III. | Andhra Pradesh |
D. | Kathak | IV. | Odisha |
A battery of emf \( E \) and internal resistance \( r \) is connected to a rheostat. When a current of 2A is drawn from the battery, the potential difference across the rheostat is 5V. The potential difference becomes 4V when a current of 4A is drawn from the battery. Calculate the value of \( E \) and \( r \).