# Ohm’s Laws – 20

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20. What is the approximate resistance of a rheostat if the voltage source is 18 V and the current is 220 mA?

(a) 8.2 kΩ
(b) 820 Ω
(c) 8.2 Ω
(d) 82 Ω

Explanation
Explanation : No answer description available for this question. Let us discuss.
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