1.1 A burn must be treated by … A - NSC Electrical Technology Digital - Question 1 - 2024 - Paper 1

In a bistable multivibrator configuration, the op amp operates as a comparator. This means it compares two input voltages and switches its output state based on that comparison.

This description fits a monostable multivibrator, which changes its output state temporarily in response to a trigger pulse and then resets after a designated period defined by the RC time constant.

The circuit that converts a sine wave into a square wave is known as a Schmitt trigger. This device provides a clean transition between high and low states.

In this scenario, the capacitor will discharge exponentially to 0 V. The integrator’s operation implies that the output voltage follows the integrated input over time.

In astable mode, the 555 IC functions as a free-running oscillator. It produces a continuous square wave output without any stable state.

Operational amplifiers are characterized by very high voltage gain, low output impedance, and high input impedance. This allows them to perform various analog signal processing tasks effectively.

A sinking output connects the transistor collector to the LED cathode, ensuring that current flows through the LED when the transistor is activated.

One method of displaying information in digital systems is through a light-emitting diode (LED), which provides a visual indication of the digital state.

An up/down counter is commonly used in lifts (elevators) to keep track of the position relative to ground levels, allowing it to move up or down accordingly.

To achieve a '1' output from a JK flip-flop, the combination of J = 1 and K = 0 should be used, as it sets the flip-flop to a high state.

A flow chart is best defined as a block diagram with instructions depicting the order of execution. This visual representation helps programmers understand the sequence of operations.