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Practical Electronic
National 4 Physics - Practical Electrical and Electronic Circuits.
Question | Answer |
---|---|
What is the rule about current in a series circuit? | Current is the same throughout the circuit. |
What is the rule about voltage in a series circuit? | Voltage is shared between each component. |
What is the rule about current in a parallel circuit? | Current is shared between each path of the circuit. |
What is the rule about voltage in a series circuit? | Voltage is the same across each path of the circuit. |
What is resistance measured in? | The unit for resistance is the Ohm, the symbol for Ohm is Ω. |
How can you calculate resistance if you have current and voltage? | Resistance is voltage divided by current. |
How can you calculate current if you have resistance and voltage? | Current is voltage divided by resistance. |
How can you calculate voltage if you have current and resistance? | Voltage is current multiplied by resistance. |
If voltage increases current goes... | Up. |
If resistance increases current goes... | Down. |
How do you calculate total resistance in a series circuit? | All individual resistances added together. |
What values can an analogue signal take? | Any value. |
What values can a digital signal take? | 0 and 1. |
Is a voltmeter connected in series or parallel? | Parallel |
Is a ammeter connected in series or parallel? | Series |
What is an example of a digital input device? | Switch |
What is an example of a digital output device? | LED, 7 Segment Display, Solenoid, Relay |
What is an example of an analogue input device? | Microphone, Variable Resistor, Thermistor, LDR, Solar Cell |
What is an example of an analogue output device? | Motor, Loudspeaker, Lamp |