The net resistance of an ammeter should be small to ensure that
1. it does not get overheated
2. it does not draw excessive current
3. it can measure large currents
4. it does not appreciably change the current to be measured.
1. | it does not get overheated. |
2. | it does not draw excessive current. |
3. | it can measure large potential differences. |
4. | it does not appreciably change the potential difference to be measured. |
Mark out the correct options.
(a) | An ammeter should have small resistance. |
(b) | An ammeter should have large resistance. |
(c) | A voltmeter should have small resistance. |
(d) | A voltmeter should have large resistance |
Choose the correct option:
1. | (a) only | 2. | (b), (c) |
3. | (c), (d) | 4. | (a), (d) |