Question

what would be the current drawn if a resistance of 20 ohm has a power of 2 kilowatt​

Answer 1

Solution: Power = V × i and Resistance = V/i

→ 2 kW = V × i and 20 Ω = V/i

→ 2000 kW = V × i and 20 Ω = V/i

→ 2000 = V × i and 20 i = V

→ 2000 = 20 i × i

→ 100 = i²

→ ± 10 = i

Hence current drawn is 10 A

Answer 2

Solution - power - v × i and 20 = v/i

2000 = kw = v × i and 20 = v/i

2000 = v × i and 20 i v/i

2000 = v × i and 20 i = v

2000 = 20 i × i

$100 \times {i}^{2}$

+ 10 = i

so current drawn is 10 A

hope this will help you..