1.1 A burn must be treated by …
A covering the burnt area with butter - NSC Electrical Technology Digital - 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 bur... show full transcript
Worked Solution & Example Answer:1.1 A burn must be treated by …
A covering the burnt area with butter - 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 running cold water over the affected area until the pain reduces. This method helps to cool the skin and reduce damage.
Step 2
In an op-amp bistable multivibrator circuit the op amp operates as an/a …
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Answer
In this context, the op-amp operates as a comparator. It compares the input voltages and determines the output state based on the comparison.
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 describes a monostable multivibrator, which changes output state upon receiving a trigger pulse and resets after a specific time interval.
Step 4
A circuit used to change a sine wave into a square wave with the same frequency is a …
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The correct component for this function is a Schmitt trigger, which effectively converts analog signals and provides a clean square wave output.
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 in this configuration will discharge exponentially to 0 V, as the output of the integrator responds to the input waveform.
Step 6
The 555 IC functions as a … in an astable mode operation.
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In the astable mode, the 555 timer acts as a free-running oscillator, generating a continuous square wave output.
Step 7
The main characteristics of operational amplifiers are …
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Answer
Operational amplifiers are characterized by very high output impedance, low input impedance, high voltage gain, and wide bandwidth.
Step 8
A … output connects the transistor collector to the LED cathode.
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Answer
A sinking output configuration connects the transistor collector to the LED cathode, allowing current to flow through the LED when activated.
Step 9
ONE method of displaying information in digital systems is through the use of a …
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Answer
A light-emitting diode (LED) is one method to display information visually in digital systems.
Step 10
An up/down counter is used as an application in …
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Answer
An up/down counter is commonly applied in frequency dividers, allowing the count to increase or decrease based on the input signals.
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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To produce a high output ('1') from a JK flip-flop, the combinations J = 1 and K = 0 (option B) will ensure the output is set 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 ...
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Answer
A flow chart is defined as a block diagram with instructions in the order of execution, outlining the logical flow of operations.
