Question

An electric iron consumes energy at a rate of 840 W when the heating is at the
minimum rate and 360 W when the heating is at the minimum rate. The applied
voltage is 220 V. What is the value of current and the resistance in each case?​

Answer 1

Answer:

An electric iron consumes energy at a rate of 840 W when heating is at the maximum rate and 360 W when the heating is at the minimum rate. An electric iron consumes energy at a rate of 840 W when heating is at the maximum rate and 360 W when the heating is at the minimum rate. The applied voltage is 220 V.

Answer 2

Required Answer:

☑ When heating is at maximum rate (P = 840 W)

☑ Current is 3.82 A

☑ Resistance is 57.6 Ω.

☑ When heating is at minimum rate (P = 360 W)

☑ Current is 1.64 A

☑ Resistance is 134.44 Ω.