4, Find the cost of using a 100w, 220v lamp for 20 hours at Php 3.00 per kW hr.
A. php 6.00
B. php 9.00
C. php 10.00
D. php 60.00
Answer:A
4, Find the cost of using a 100w, 220v lamp for 20 hours at Php 3.00 per kW hr.
A. php 6.00 B. php 9.00 C. php 10.00 D. php 60.00