The amperage in a circuit of known resistance is dependent on

Question

BlackTom AI · Accepted Answer

This question asks what determines the amperage in a circuit when the resistance is known.
The given option states: 'the applied voltage.'
To understand this, recall Ohm's Law, which relates current (I), voltage (V), and resistance (R) by I = V / R. When R is fixed, the current is directly proportional to the voltage: increasing the applied voltage yields a larger current, while decreasing the voltage reduces the current. Conversely, holding voltage constant while changing resistance would also affect current, but the question specifies resistance is known, so the decisive factor left is the applied voltage.
Since the resistance is known and fixed, the only variable that directly sets the magnitude of current in the expression I = V / R is V, the applied voltage. Hence, the amperage in this scenario depends on the applied voltage.
No additional options are provided to critique, so there is no alternative reasoning to debunk here. The core concept is that current scales with voltage when resistance remains constant, per Ohm's Law.

AMT&101 36393 Test - Basic Electricity

The amperage in a circuit of known resistance is dependent on

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