Question

(3)
Solve : An electrical iron uses a power of 1100 W when set to
higher temperature. If set to lower temperature, it uses 330 W
power. Find out the electric current and the respective resistance
of 220 V​

Answer 1

Explanation:

Hope you get the answer right!

Answer 2

Answer:

current 3.25 A

r is 62.8 ohm

Explanation:

power is 1100 w high temperature. p1

power is.330 w. lower temperature. p2

$1100 = 220 \times x$

p =v.i

current in p1 is 5 A

$330 = 220 \times x$

current p2 is 1.5 A

average current 3.25 A....

also v is i.r

$220 = 3.25 \times y$

$y = 220 \div 3.25 = 62.8$