111,245 views
11 votes
11 votes
Justine's hair dryer has a resistance of 8 Ω when first turned on. How much currentdoes the hair dryer draw from 134 V line in Justine's house?

User Ufxmeng
by
3.3k points

1 Answer

26 votes
26 votes

Ohm's law :

V = I x R

V= voltage = 134 V

R = resistance = 8 Ω

I = current

I = V / R

Replacing:

I = 134/8 = 16.75

Current = 16.75 Ampere [A]

User Octav
by
3.0k points