Electrical Components Flashcards
(26 cards)
What does the circuit symbol for a single cell battery look like?
A short line and a longer line parallel to each other; the longer line represents the positive terminal.
What is the difference between a single cell and multi-cell battery symbol?
Multi-cell battery symbol is multiple single cell symbols connected in series.
What does the resistor symbol look like?
A zigzag line.
What is a variable resistor?
A resistor whose resistance can be adjusted manually.
What symbol represents a variable resistor?
A zigzag line with an arrow diagonally across it.
What is a Light Dependent Resistor (LDR)?
A resistor whose resistance decreases as light intensity increases.
What does the LDR symbol look like?
A resistor symbol with arrows pointing towards it, indicating light.
What is a thermistor?
A resistor that changes resistance with temperature.
What does a Negative Temperature Coefficient (NTC) thermistor symbol look like?
A resistor symbol with a diagonal line through it and a temperature symbol.
What is the diode symbol?
A triangle pointing to a line.
What is a thyristor?
A semiconductor device used to control high power.
What does the thyristor symbol look like?
A diode symbol with an additional gate line.
What is an NPN transistor?
A transistor type used as a switch or amplifier.
What does the NPN transistor symbol look like?
A circle with three terminals (emitter, base, collector) with an arrow on the emitter pointing out.
What is the symbol for a buzzer?
A circle with a ‘Z’ or sound wave lines inside.
What does the LED symbol look like?
A diode symbol with two arrows pointing away to indicate light emission.
What is the symbol for a bulb?
A circle with a cross inside.
What is the symbol for a motor?
A circle with the letter ‘M’ inside.
What is a potentiometer?
A variable resistor used to adjust voltage.
What does the potentiometer symbol look like?
A resistor symbol with an arrow pointing to the middle.
What is the earth symbol?
Three horizontal lines of decreasing width stacked vertically.
What is the AC supply symbol?
A sine wave symbol.
What does a voltmeter symbol look like?
A circle with the letter ‘V’ inside.
What does an ammeter symbol look like?
A circle with the letter ‘A’ inside.
