12 V and 2 A: calculate 6 Ω and 24 W
Follow an exact voltage-and-current pair through resistance and power with no rounding.
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Ohm's law examples with exact arithmetic
Follow 12 V with 2 A and 5 V with 220 Ω through exact fractions, readable units, and explicit boundaries.
5 V across 220 Ω: current and power
Keep the exact fractions 1/44 A and 5/44 W, then display readable milli-unit approximations.
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