Question

In a telephone exchange, the rectifier is used to:

1.
Convert AC mains supply to DC for charging the battery
2.
Convert DC to AC for the exchange
3.
Step up the voltage for the lines
4.
Protect the exchange from lightning
Answer (Detailed Solution Below)

Option 1 : Convert AC mains supply to DC for charging the battery

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Detailed Solution

सही उत्तर Convert AC mains supply to DC for charging the battery है।

Key Points

The rectifier converts AC mains supply to DC to charge the battery bank and power the telephone exchange.

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More Domain Specific Questions

PrepSnapprepsnap.in • Domain Specific

Question:

In a telephone exchange, the rectifier is used to:

1.
Convert AC mains supply to DC for charging the battery
2.
Convert DC to AC for the exchange
3.
Step up the voltage for the lines
4.
Protect the exchange from lightning

Correct Answer: Convert AC mains supply to DC for charging the battery

The rectifier converts AC mains supply to DC to charge the battery bank and power the telephone exchange.

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