The voltage in the section of the circuit is 120 V. The resistance of the resistor is 240 Ohm. Determine the amperage in the circuit.
January 17, 2021 | education
| Given:
U = 120 Volts – voltage at a certain section of the circuit;
R = 240 Ohm is the resistance of the resistor in this section.
It is required to calculate I (Ampere) – the magnitude of the current in this section of the circuit.
To determine the magnitude of the current strength, you must use the following formula:
U = I * R, from here we get that:
I = U / R = 120/240 = 12/24 = 1/2 = 0.5 Ampere (500 mA).
Answer: the current in the section of the circuit is 0.5 Amperes (500 mA).
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