1.1 A burn must be treated by …
C puncuturing the blisters - NSC Electrical Technology Digital - Question 1 - 2024 - Paper 1
Question 1
1.1 A burn must be treated by …
C puncuturing the blisters.
1.2 In an op-amp bistable multivibrator circuit the op amp operates as an…
B summing amplifier.
1.3 A/a... show full transcript
Worked Solution & Example Answer:1.1 A burn must be treated by …
C puncuturing the blisters - NSC Electrical Technology Digital - Question 1 - 2024 - Paper 1
Step 1
A burn must be treated by …
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Answer
A burn should be treated by puncturing the blisters to release the fluid and prevent the formation of a larger blister.
Step 2
In an op-amp bistable multivibrator circuit the op amp operates as an…
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Answer
In this context, the op-amp functions as a summing amplifier, which allows it to maintain a stable state based on input signals.
Step 3
A/an … changes its output state when a trigger pulse is received. It remains in that state for a time determined by the RC time constant. Thereafter it returns to its original state.
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Answer
This component is characterized as a bistable multivibrator, switching states based on external trigger pulses.
Step 4
A circuit used to change a sine wave into a square wave with the same frequency is a …
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Answer
Such a circuit is known as a monostable multivibrator, which converts sine waves into square waves.
Step 5
When a positive square wave is applied to the inverting input of an op-amp integrator and the non-inverting input is connected to ground, the capacitor will …
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Answer
The capacitor will discharge at a constant fixed rate to 0 V, resulting in a linear ramp output.
Step 6
The 555 IC functions as a … in an astable mode operation.
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Answer
In astable mode, the 555 timer operates as an oscillator generating a continuous square wave output.
Step 7
The main characteristics of operational amplifiers are …
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Answer
Operational amplifiers typically exhibit low voltage gain, low current gain, low output impedance, and narrow bandwidth.
Step 8
A … output connects the transistor collector to the LED cathode.
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Answer
This type of output is referred to as a sinking configuration, where the current flows from the load to ground.
Step 9
ONE method of displaying information in digital systems is through the use of a …
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Answer
A light-dependent resistor is a common method for displaying information, as it changes resistance based on light exposure.
Step 10
An up/down counter is used as an application in …
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Answer
Up/down counters are often utilized in frequency dividers, allowing the counting in both ascending and descending order.
Step 11
Choose the correct JK input combinations that will produce a ‘1’ (high) on the output of the JK flip-flop:
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The appropriate input combination is J = 1 and K = 0, which ensures the output remains high.
Step 12
Microcontrollers can be programmed in various ways. One of the methods to program a microcontroller is to use a flow chart. A flow chart is defined as a …
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Answer
A flow chart is defined as a block diagram with instructions in the order of execution, illustrating the sequence of operations.
