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Nat 5 Practical Elec

Nat 5 Practical Electronics

QuestionAnswer
What is the function of a MOSFET transistor? switch electrical
What is the symbol for a motor? a circle with an "M" in the centre
What protects wiring from too much current? fuse
What emits light? LED
What is a relay? electromagnetic switch
What is the symbol for a 741 operational amplifier (op-amp)? Basically a really bad stick figure drawing of a woman on it's side with no head
What will always get you 1 mark in an exam for a question with a relay in it? (When switch closed) current flows through electromagnet/coil
What is it called when sleeves are put on wires? heat shrink (tubing)
Why is heat shrink (tubing) used? to avoid short circuiting the component/ stop the bare wires touching
How do you calculate resistance in series? RT=R1+R2+R3...
How do you calculate resistance in parallel? 1/RT=1/R1+1/R2+1/R3...
What is a multi-strand cable used for? phone/telecom
What is a coaxial cable used for? aerial/TV signal/radio signals/connecting CRO/audio
Created by: Camzy
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