D3. Voltmeter Usage
Explain why a voltmeter is connected in parallel with the resistor. In order for the voltmeter to have little impact on the circuit, what should its resistance be? Explain. {Hint: I am not looking for a number answer. Think about what the current does when another branch is added to a node – how do you minimize that?}
D4. Ammeter Usage
Explain why an ammeter is connected in series with the circuit. In order for an ammeter to have little impact on the circuit, what should its resistance be? Explain. {Hint: I am not looking for a number answer. Think about the voltage drop created by current through a component. What happens when you add another component to a loop – how do you minimize that?}