An electric drill at 400 W is connected to 120 V power line. What is the resistance of the drill?

asked Oct 24, 2022 220k views

4 votes

by Elia

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5 votes

Answer:

36 ohm

Step-by-step explanation:

Given :

P=400 W

V=120V

Now,

$P=(V^(2) )/(R) \\400=(120^(2) )/(R) \\400R=14400\\R=(14400)/(400) \\R=36 ohm$

Therefore, resistance of the drill will be 36 ohm

Mario Palumbo answered Oct 29, 2022

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