A burn must be treated by …
A covering the burnt area with butter - NSC Electrical Technology Electronics - Question 1 - 2024 - Paper 1
Question 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 burnt ar... show full transcript
Worked Solution & Example Answer:A burn must be treated by …
A covering the burnt area with butter - NSC Electrical Technology Electronics - Question 1 - 2024 - Paper 1
Step 1
A burn must be treated by …
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Answer
The correct method to treat a burn is D: running cold water over the burnt area until the pain reduces. This approach helps in cooling the burn and alleviating pain effectively.
Step 2
The power in an inductor is …
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Answer
The correct option is D: true power. In an inductor, the power is associated with the energy stored and not merely the voltage and current magnitudes.
Step 3
A parallel RLC circuit is more capacitive when …
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Answer
The condition for a parallel RLC circuit to be more capacitive is given by A: Xc > XL. This indicates that the capacitive reactance should exceed the inductive reactance.
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. Increasing resistance results in lower 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 correct answer is B: saturation. A UJT remains in a permanent ON state once it enters saturation.
Step 6
The characteristics of a Darlington transistor amplifier are …
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Answer
The correct answer is C: higher input impedance and higher current gain. This configuration allows for better performance in terms of gain characteristics.
Step 7
The 555 IC functions as a … in an astable mode of operation.
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Answer
In an astable mode, the 555 IC functions as C: free-running oscillator. This mode allows it to generate a continuous square wave signal.
Step 8
The main characteristics of operational amplifiers are …
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Answer
The correct characteristics are A: very high output impedance, low input impedance, high voltage gain and wide bandwidth. These features are essential in defining operational amplifiers' roles in circuits.
