Question

An electric iron has a rating of 750W-220V. Calculate the following :

(i)The current passing through it.
(ii) Its resistance, when in use.


_______Please Answer it Soon_______

:D

#No - Spam!

Answer 1

Solution

We know that P = V × i and R = V/i

• Power = 750 W
• Voltage = 220 V

→ P = V × i

→ 750 W = 220 V × i

→ 750 W/ 220 V = i

→ 3.41 A = Current

Now by substituting values we get

→ R = V/i

→ R = 220 V/3.41 A

→ R = 64.52 Ω

Hence resistance is 64.52 Ω and current is 3.41 A.

Answer 2

$\huge{\boxed{\tt{Answer:-}}}$

★Given:-

Power = 750 W

Voltage = 220 V

$\huge{\boxed{\tt{Explanation:-}}}$

★We know that:-

$\large{\boxed{\tt{P = V × I}}}$

=> 750 W = 220 V × I

=>  750 W/ 220 V = I

=> 3.41 A = Current

★We also know:-

=> R = V/i

=> R = 220 V/3.41 A

=> R = 64.52 Ω

★ $\large{\underline{\textbf{Answer:-}}}$

$\large{\boxed{\tt{Current = 3.14 Ω}}}$

$\large{\boxed{\tt{Resistance = 64.52 Ω}}}$