All Flashcards
What is the effect of increasing the cross-sectional area of a wire on the current, assuming other factors remain constant?
The current increases.
What is the effect of increasing the drift velocity of charge carriers on the current, assuming other factors remain constant?
The current increases.
What happens if an ammeter is connected in parallel in a circuit?
It can lead to a short circuit.
What happens if a voltmeter is connected in series in a circuit?
It can lead to inaccurate readings.
What is the circuit symbol for a battery?
A long line and a short line, parallel to each other. The long line represents the positive terminal.
What is the circuit symbol for a resistor?
A zig-zag line.
What is the circuit symbol for a capacitor?
Two equal length parallel lines.
What is the circuit symbol for a switch?
An open circuit with a hinged line that can close the circuit.
What is the difference between how ammeters and voltmeters are connected in a circuit?
Ammeters are connected in series. Voltmeters are connected in parallel.
What is the difference in internal resistance between ideal ammeters and voltmeters?
Ideal ammeters have very low internal resistance. Ideal voltmeters have very high internal resistance.