Discussion
Match List I with List II.
| List I | List II |
|---|---|
| (a) Recording Instruments | (i) C.T. and P.T. |
| (b) Integrating Instruments | (ii) Measurement of current |
| (c) Galvanometer | (iii) Watt hour Meter |
| (d) Instrument Transformers | (iv) Magnetic Tape |
Choose the most appropriate answer from the options given below :
Answer: B
The correct matching is (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i).
- Recording instruments keep a continuous record of a quantity over time, on a chart or magnetic tape: (iv).
- Integrating instruments add up a quantity over time, like the watt hour meter that totals energy: (iii).
- A galvanometer detects and measures small currents: (ii).
- Instrument transformers are the C.T. and P.T.: (i).
The option ending (c)-(i), (d)-(ii) swaps the galvanometer and instrument transformers, and the options starting (a)-(iii) confuse recording with integrating instruments.
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