Two resistors with resistances equal to 4 and 8 ohms are connected in parallel. The voltage across the resistors is 6 V.
| August 24, 2021 | education
Two resistors with resistances equal to 4 and 8 ohms are connected in parallel. The voltage across the resistors is 6 V. Determine the amperage in each resistor and in the unbranched part of the circuit.
Current through the first resistance:
I1 = U / R1 = 6 V / 4 Ohm = 1.5 A.
Current through the second resistance:
I2 = U / R2 = 6 V / 8 Ohm = 0.75 A.
The current in the unbranched part of the circuit must be equal to the sum of the currents through each of the resistances:
I = I1 + I2 = 1.5 A + 0.75 A = 2.25 A.
Answer: I1 = 1.5 A; I2 = 0.75 A; I = 2.25 A.
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