äӹdzҤҾѧҹ俿

1. ˹¢ͧѧҹ俿˹硤 (J) öӹdzҤҾѧҹ俿ҡٵà P = W/t
2. ˹¢ͧѧҹ俿ҷѺͧ俿ҹ˹·˭Ҩ ѵ- ˹ ٹԵ(unit) öӹdzҡٵà

ѧҹ俿 (ٹԵ) = ѧ俿(ѵ) x () W = kw x h

ͧҡ ѧ俿 1 ѵ = 1000 ѵ
ѧ鹠 ѧҹ俿 1 ˹ 1 ٹԵ = 1 kw h = 1000 w-h

ҧ ˹ѧ俿 500 w еͧǹҹ㴨֧ͧѧҹ俿 1 ٹԵ

ԸշӠ
ҡٵà W = kw h
᷹ٵà 1 ٹԵ = 500/1000 x
Ҡ = 1000/500 = 2 =
ͺ еͧǹҹ 2 ֧ͧѧҹ俿 1 ٹԵ