Question

1. a series circuit that has an open component________.a allows no currentb allows current to reach maximumc measures 0 volts across the open componentd measures the applied voltage across the good component

Explanation:

In a series circuit, the current has only one path. If there is an open component (a break in the circuit), the circuit is no longer a complete path. According to Ohm's law \(I = \frac{V}{R}\), when the circuit is open (\(R=\infty\) for the open - component situation in terms of the overall circuit continuity), the current \(I = 0\).

• Option b: Since \(I = 0\) (not maximum), this is wrong.
• Option c: When there is an open component, the voltage across the open component is equal to the source voltage (not 0). Using the concept of potential difference in an open - circuit (similar to a voltmeter connected across an open component, it measures the source voltage).
• Option d: The voltage across a good component in a series - circuit with an open component is 0 (because \(I = 0\) and \(V=IR\)).

Answer:

A. allows no current