1.1 A burn must be treated by …
A - NSC Electrical Technology Electronics - Question 1 - 2024 - Paper 1
Question 1
1.1 A burn must be treated by …
A. covering the burnt area with butter.
B. putting ice on the burn wound.
C. puncturing the blisters.
D. running cold water over the ... show full transcript
Worked Solution & Example Answer:1.1 A burn must be treated by …
A - NSC Electrical Technology Electronics - Question 1 - 2024 - Paper 1
Step 1
A burn must be treated by …
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Answer
The correct approach for treating a burn is D: running cold water over the burnt area until the pain reduces. This method helps to cool the burn, alleviate pain, and prevent further skin damage.
Step 2
The power in an inductor is …
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Answer
The correct answer is C: reactive power. In inductors, the power is represented as reactive power due to its dependency on the phase difference between voltage and current.
Step 3
A parallel RLC circuit is more capacitive when …
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Answer
The condition is indicated by A: Xc > XL, meaning that the capacitive reactance is greater than the inductive reactance, rendering the circuit predominantly capacitive.
Step 4
An increase in resistance of a parallel resonant circuit will cause the total current to …
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Answer
The total current will B: decrease. This is because increased resistance reduces the overall current flow in the circuit.
Step 5
A UJT will go into a permanent ON state when it reaches the … region.
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Answer
The answer is B: saturation. In this state, the UJT is fully conducting, allowing a continuous flow of current.
Step 6
The characteristics of a Darlington transistor amplifier are …
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Answer
The correct characteristics are C: higher input impedance and higher current gain. This configuration allows for efficient signal amplification.
Step 7
The 555 IC functions as a … in an astable mode of operation.
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Answer
The 555 IC operates as C: free-running oscillator in this mode, generating a continuous square wave output.
Step 8
The main characteristics of operational amplifiers are …
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Answer
The defining characteristics are A: very high output impedance, low input impedance, high voltage gain, and wide bandwidth. These attributes are crucial for many amplification applications.
