# What must be the resistance of the element?

The heating element of an electric oven is designed to produce 3.4 kW of heat when connected to a 240-V source.

What must be the resistance of the element?

R= ? Ω

### 3 Answers

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- Old Science GuyLv 78 months agoFavorite Answer
P = V I = V^2 / R

3.4E3 = 240^2 / R

R = 17 ohm to two sig figs

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- LônLv 78 months ago
1) Find the current...P/V = 3400/240 = 14.2 A.

2) Resistance = V/I = 240/14.2 = 16.9 ohms.

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