State the disadvantage of direct current.
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direct current is costly
it has low efficiency
it is costly to produced
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DC current
Explanation:
Disadvantages of DC (Direct Current) current are:
- Difficulty of generating the DC at high voltage because of the commutation problems.
- The voltage in DC system cannot be easily stepped up for high-voltage transmission. Whereas in AC system, it can be easily done with a transformer.
- DC circuit breakers and switches offer more limitations.
- So DC correct is more difficult to transmit and hence expensive, hence not practical.
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