Question

solve this both queation....​

Answer 1

Explanation:

ans 4---

V=IR

1=0.4×R

R=1/0.4

=2.5ohms

ans5---

P=VI

1000=220×I

l=1000/220

=4.5ampere

V=IR

220/4.5=R

R=48.8ohms

please mark it as brainliest

Answer 2

Explanation:

Using Ohm's law,

R=V/I

=1/0.4

=2.5 ohm

P=1000W

V=220V

We know that,P=V²/R

1000=220²/R

R=48400/1000

R=48.4 ohm

Also, P=VI

1000=220×I

1000/220=I

I=4.5454.. A