Question

An electric iron is rated 220 v, 2kw. If the iron is used for 2 h daily, find the cost of running it for one week, if it costs 4.25 per kwh.

Answer 1

Answer:

(i) Given electric irons rated 220 V, 2 KW daily uses 2 hr, Cost = Rs.4.25 /kWh ⇒ Cost of power used by Iron for one week = 7 day x 2 hr x 2 kW x 4.25 / KWhr. = Rs. 28 x 4.25 = Rs.119.00 (ii) Fuse is necessary in electrical circuit because if there is a flow of high current or voltage in the circuit, then fuse is blown off by melting and as a result the power circuit of OFF and our appliance are safe and they are protected.Read more on Sarthaks.com - https://www.sarthaks.com/215134/electric-iron-rated-220v-iron-used-for-daily-find-the-cost-running-for-one-week-costs-per-kwh