Physics - Circuits
What is the symbol for a wire in a circuit?

What is the symbol for a resistor in a circuit?

What is the symbol for a light bulb in a circuit?

What is the symbol for a cell in a circuit?

What is the symbol for a battery in a circuit?

What is the symbol for a switch in a circuit?

Which is the positive terminal?
Which is the positive terminal?The one on the left.
What is the technique for remembering the positive and negative terminals on a cell?
What is the technique for remembering the positive and negative terminals on a cell?You can draw a “P” on the big positive side.
2021-01-18
What is the symbol for a diode in a circuit?

What does this represent in a circuit?
What does this represent in a circuit?A diode.
What is the symbol for a resistor in a circuit?

What does this represent in a circuit?
What does this represent in a circuit?A resistor.
What is the symbol for a variable-resistor in a circuit?

What does this represent in a circuit?
What does this represent in a circuit?A variable resistor.
What is the symbol for a fuse in a circuit?

What does this represent in a circuit?
What does this represent in a circuit?A fuse.
What is the symbol for a voltmeter in a circuit?

What does this represent in a circuit?
What does this represent in a circuit?A voltmeter.
What is the symbol for a ammeter in a circuit?

What does this represent in a circuit?
What does this represent in a circuit?An ammeter.
What is the symbol for a thermistor in a circuit?

What does this represent in a circuit?
What does this represent in a circuit?A thermistor.
What is the symbol for a led in a circuit?

What does this represent in a circuit?
What does this represent in a circuit?An LED.
What is the symbol for a capacitor in a circuit?

What does this represent in a circuit?
What does this represent in a circuit?A capacitor.
Should you connect an ammeter in series or in parallel?
In series.
Should you connect a voltmeter in series or in parallel?
In parallel.
2021-01-29
Which way does a diode need to be pointing to let current through?
In the direction of the conventional current.
What is the threshold voltage for a silicon diode?
About $0.7V$.
2021-02-04
How do fuses work?
They contain a wire which melts if the current is too high.