sophash2
Answered

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The potential difference across a variable resistor is 11V and the current flowing through it is 0.4A. What is the present resistance of this variable resistor? Give your answer to two significant figures.

Sagot :

Answer:

R=27.5 ohms

Explanation:

Using Ohm's Law (V = I × R), rearrange to find R:

R = V / I = 11 V / 0.4 A = 27.5 ohms

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