Question

An electric heater with a capacity of 2500w connected with a constant voltage source of 220V. Calculate (a) Resistance of heating wires (b) How much is the cost of using this heater for thirty days at a rate of ten hours a day, noting that the price of electricity is forty fils per kilowatt hour (kw.h)

Answer 1

Answer:

bro use formula

p

=

w÷t

v=ir

r=pl÷a