Various options are provided as possible answers to the following questions - NSC Electrical Technology Electronics - Question 1 - 2024 - Paper 1
Question 1
Various options are provided as possible answers to the following questions. Choose the answer and write only the letter (A–D) next to the question numbers (1.1 to 1... show full transcript
Worked Solution & Example Answer: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 best method to treat a burn is D: running cold water over the burnt area until the pain reduces. This helps in cooling the area and reducing inflammation.
Step 2
1.2 The power in an inductor is …
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Answer
The correct term for power in an inductor is D: true power. This reflects the actual energy consumed in the circuit.
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, indicating that the capacitive reactance dominates.
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, as higher resistance limits current flow.
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 enter a permanent ON state upon reaching the B: saturation region, leading to continuous conduction.
Step 6
1.6 The characteristics of a Darlington transistor amplifier are …
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Answer
The characteristics of a Darlington transistor amplifier include C: higher input impedance and higher current gain, making them suitable for various applications.
Step 7
1.7 The 555 IC functions as a … in an astable mode of operation.
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Answer
In astable mode, the 555 IC functions as C: free-running oscillator, generating a continuous square wave output.
Step 8
1.8 The main characteristics of operational amplifiers are ...
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Answer
Operational amplifiers have A: very high output impedance, low input impedance, high voltage gain, and wide bandwidth, which are essential for amplifying signals effectively.
