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1. In which of the following transformers, the secondary winding is always kept closed?
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5. To increase the range of a.c ammeter you would use: [SSC JE EE 2014]
4. Potential transformer are used [SSC JE EE 2010]
3. The two Watt meters A and B, give readings as 500 Watts and 1000 Watts respectively during the power measurement of 3-phase, 3-wire system. Calculate the total power of the circuit. [SSC JE EE 2021]
2. How many pressure coils and current coils, respectively, are present in a three-phase dynamometer wattmeter? [SSC JE EE 2022)
1. If a wattmeter is used in a circuit where safe voltage or current rating is exceeded, the meter willā¦ā¦ā¦ā¦ā¦.[SSC JE EE 2017]
