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3. A calculator is rated at 0.10 W and has an internal resistance of 22 02. What battery potential difference is required for this device?
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3. A calculator is rated at 0.10 W and has an internal resistance of 22 02. What battery

potential difference is required for this device?

User Sarun Intaralawan
by
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1 Answer

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Answer:

R = 22 Ω

P = 0.10 W

P = (ΔV)^2 / R

0.10 = (x)^2 / 22

x = 1.5

ΔV = 1.5 V

Step-by-step explanation:

User Joe Mayo
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