Answer:
(A) 654.545 Kw
(B) [tex]2.885\times 10^5kw[/tex]
Explanation:
We have given resistance of the toaster [tex]R_1=2.2\times 10^{-2}ohm=0.022ohm[/tex]
Resistance of nichrome heating element [tex]R_2=9.7ohm[/tex]
Both the resistances are connected in series so same current will flow through the circuit
Potential difference across the toaster V = 120 volt
So current [tex]i=\frac{120}{0.022}=5454.5454A[/tex]
(a) Power dissipated in toaster [tex]P=i^2R=5454.5454^2\times 0.022=654545.441W=654.545kw[/tex]
(B) Power dissipated in heating element [tex]P=i^2R=5454.5454^2\times 9.7=2.885\times 10^8W=2.885\times 10^5kw[/tex]
