QUESTION 1: MULTIPLE-CHOICE QUESTIONS
Various options are provided as possible answers to the following questions - NSC Electrical Technology Electronics - Question 1 - 2024 - Paper 1
Question 1
QUESTION 1: MULTIPLE-CHOICE QUESTIONS
Various options are provided as possible answers to the following questions. Choose the answer and write only the letter (A–D)... show full transcript
Worked Solution & Example Answer:QUESTION 1: MULTIPLE-CHOICE QUESTIONS
Various options are provided as possible answers to the following questions - NSC Electrical Technology Electronics - Question 1 - 2024 - Paper 1
Step 1
1.1 A burn must be treated by …
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Answer
The correct treatment for a burn is D: running cold water over the burnt area until the pain reduces. This approach helps to cool the burn and alleviate pain.
Step 2
1.2 The power in an inductor is …
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Answer
The power in an inductor is C: reactive power. This represents the power stored in the magnetic field of the inductor.
Step 3
1.3 A parallel RLC circuit is more capacitive when …
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Answer
A parallel RLC circuit is more capacitive when A: Xc > XL. This indicates that the capacitive reactance is greater than the inductive reactance.
Step 4
1.4 An increase in resistance of a parallel resonant circuit will cause the total current to …
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Answer
An increase in resistance of a parallel resonant circuit will cause the total current to B: decrease. This is due to the reduced overall current flow with increased resistance.
Step 5
1.5 A UJT will go into a permanent ON state when it reaches the … region.
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Answer
A UJT will go into a permanent ON state when it reaches the B: saturation region. This is the point where the device conducts heavily.
Step 6
1.6 The characteristics of a Darlington transistor amplifier are …
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Answer
The characteristics of a Darlington transistor amplifier are B: higher input impedance and lower current gain. This configuration typically offers high input impedance.
Step 7
1.7 The 555 IC functions as a … in an astable mode of operation.
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Answer
The 555 IC functions as a C: free-running oscillator in astable mode, producing continuous pulse outputs.
Step 8
1.8 The main characteristics of operational amplifiers are …
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Answer
The main characteristics of operational amplifiers are A: very high output impedance, low input impedance, high voltage gain and wide bandwidth. These characteristics make them versatile in various applications.
