Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
A hair dryer is rated as
PHYSICS · Single correct · CBSE · Physics · Electricity · Electricity
Problem
31. A hair dryer is rated as
1200
W
,
120
V
1200 \mathrm{~W}, 120 \mathrm{~V}
1200
W
,
120
V
. Its effective internal resistance is (A)
0.1
Ω
0.1 \Omega
0.1Ω
(B)
10
Ω
10 \Omega
10Ω
(C)
12
Ω
12 \Omega
12Ω
(D)
120
Ω
120 \Omega
120Ω
(E)
1440
Ω
1440 \Omega
1440Ω
Related theory
Electric Power
Electrical power and energy
Electricity
Electric Circuits
Electrical energy and power
Current Electricity
Browse the problem library