Calculate Element Resistance | Dataford Interview Questions

If an element uses 240V and outputs X watts, what is the resistance of the element?

Implement element_resistance(power_watts) to return the resistance in ohms using R = V² / P, where voltage is fixed at 240V. The input is a positive number of watts, and the output must be a numeric resistance value.

Constraints

0 < power_watts <= 10^9
power_watts may be an integer or a floating-point number
Return the resistance in ohms as a numeric value

Function Signature

def element_resistance(power_watts):

Your question is Calculate Element Resistance. Start with the requirements in the Question tab.

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Problem

If an element uses 240V and outputs X watts, what is the resistance of the element?

Constraints

0 < power_watts <= 10^9
power_watts may be an integer or a floating-point number
Return the resistance in ohms as a numeric value

Function Signature

def element_resistance(power_watts):

Your question is Calculate Element Resistance. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.