The resistivity temperature The toaster is designed to operate at a voltage of 120 V. How much power does it draw in normal operation? of nichrome at the operating of the toaster is 1.3 x 10-60 m. O A. 360 W OB. 410 W O C. 370 W O D. 380 W E. 400 W

The resistivity temperature The toaster is designed to operate at a voltage of 120 V. How much power does it draw in normal operation? of nichrome at the operating of the toaster is 1.3 x 10-60 m. O A. 360 W OB. 410 W O C. 370 W O D. 380 W E. 400 W

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter27: Capacitors And Batteries

Section: Chapter Questions

Problem 68PQ

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Question

The heating element of a toaster is a 5.4-m
length of nichrome wire of diameter 0.48 mm.
The resistivity of nichrome at the operating
temperature of the toaster is 1.3 x 10-60. m.
The toaster is designed to operate at a voltage
of 120 V. How much power does it draw in
normal operation?
A. 360 W
OB. 410 W
O C. 370 W
O D. 380 W
O E. 400 W

If V = 20 V and the battery is ideal, what is the
current through R3 in the figure?
R₁ = 10 Q2
V
L
R₁=300
O A. 0.050 A
R₂:
20 Ω
OB. 1.0 A
O C. 0.20 A
O D. 4.0 A
O E. 8.0 A
R3= 20 2

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