All household circuits are wired in parallel A 1120W toaster

All household circuits are wired in parallel. A 1120-W toaster, a 260-w blender, and a 75-W lamp are plugged into the same outlet. (The three devices are in parallel when plugged into the same outlet.) Assume that this is the standard household 120-V circuit with a 15-A fuse (a) What current is drawn by each device? toaster blender lamp (b) To see if this combination will blow the 15-A fuse, find the total current used when all three appliances are on total

Solution

Given that

power P_toaster=1120 W

P_blender=260 W

P_lamp=75 W

voltage V=120 v

basing on the concept of current electricity

now we find the current on each device

current on toaster I_toaster=1120/120=9.3 A

current on blender I_blender =260/120=2.2 A

current on lamp I_lamp=75/120=0.63 A

the total current I=9.3+2.2+0.63=12.13 A