Question

An electric heater is rated as 1200 watt,200 V.calculate the current flowing through it and resistance of heating element​

Answer 1

given

power(p)=1200w

p.d=200v

p=i*v

current(i)=1200/200=6ampere

resistance=v/r=200/6=100/3=33.3333'

Answer 2

Answer: I= $5.46A$

Explanation:

P= $1200W$

v= $220V$

I)

P=VI (formula of power)

Consequently, I = P/V

I= $1200/220$

I = about $5.6A$

II)

V=IR (Ohms law)

so that R= V/I

R= $220/5.6A$

around $40.33R$