CBSE Class 10 Science 2020 Delhi Set 3

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Question : 1
Total: 10
State an important advantage of using alternating current (a.c.) over direct current (d.c).
Solution:  
Alternating current (a.c.) can be transmitted using step up transformers but direct current or (d.c.) cannot be transmitted by this method.
(i) The a.c. is easy to generate than d.c.
(ii) It is cheaper to generate a.c. than d.c.
(iii) The a.c. generators have higher efficiency than d.c.
(iv) The loss of energy during transmission is negligible for a.c.
(Any one)
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