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- Tangent galvanometer
- Rayleigh current balance
- Household energy meter
- Hot wire ammeter
Consider the following instruments
| |
A. | 1, 2 and 3 [Wrong Answer] |
B. | 1, 2 and 4 [Wrong Answer] |
C. | 1 and 2 [Correct Answer] |
D. | 2, 3 and 4 [Wrong Answer] |