Determine the ammeter reading if R1 = 10 ohms R2 = 20 ohms and the voltage at the ends of the circuit is U = 45 V.
| November 20, 2020 | education
The formula for the current is I = U / R1 + R2, where U is the voltage, R1 is the resistance of the first resistor, and R2 is the second, respectively.
Then I = 45/10 + 20 = 1.5 A.
Answer: 1.5 A.
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