Final answer:
A student's question pertains to labeling parts of a circuit diagram and constructing a specific circuit setup involving parallel batteries and resistors, an open switch, an ammeter, and a voltmeter. The terms 'resistor,' 'coulomb,' and 'voltmeter' are defined, and an explanation is given for a scenario where a bulb behaves oppositely to a switch's open and closed states due to incorrect wiring.
Step-by-step explanation:
The student's question involves a circuit diagram, specifically labeling different devices within a circuit, which includes a bulb, a switch, and a battery. The question also mentions devising a circuit with specific components including batteries in parallel, an open switch, resistors in parallel, an ammeter, and a voltmeter.
Here are the definitions of the requested terms:
- Resistor: A component that resists the flow of electric current, causing a drop in voltage as the current passes through it.
- Coulomb: A unit of electric charge, equivalent to the charge transported by a constant current of one ampere in one second.
- Voltmeter: An instrument used for measuring the electrical potential difference, also known as voltage, between two points in an electric circuit.
A circuit diagram with the specified components must include two batteries connected side-by-side (parallel), an open switch which does not currently allow electrical current to flow through, two resistors also in parallel that share the same voltage across them, an ammeter to measure the total current in the circuit, and a voltmeter across one of the parallel resistors to measure its voltage.
In the context of a wrongly wired circuit, if a bulb turns on when the switch is open and off when the switch is closed, this could indicate that the switch is wired in parallel with the bulb. Therefore, when the switch is open, current flows through the bulb, lighting it up, and when the switch is closed, the current bypasses the bulb, so it turns off.