In an electric circuit containing a battery, the charge (assumed positive) inside the battery:
1. | always goes from the positive terminal to the negative terminal. |
2. | may go from the positive terminal to the negative terminal. |
3. | always goes from the negative terminal to the positive terminal. |
4. | does not move. |
Two non-ideal batteries are connected in series. Consider the following statements:
A: | The equivalent emf is larger than either of the two emfs. |
B: | The equivalent internal resistance is smaller than either of the two internal resistances. |
1. | Each of A and B is correct. |
2. | A is correct but B is wrong. |
3. | B is correct but A is wrong. |
4. | Each of A and B is wrong. |
Two non-ideal batteries are connected in parallel. Consider the following statements:
Statement I: | The equivalent EMF is smaller than either of the two EMFs. |
Statement II: | The equivalent internal resistance is smaller than either of the two internal resistances. |
1. | Both Statement I and Statement II are correct. |
2. | Statement I is correct but Statement II is incorrect. |
3. | Statement II is correct but Statement I is incorrect. |
4. | Both Statement I and Statement II are incorrect. |