Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > When is a regulator used?a)when there are sma...
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When is a regulator used?
- a)when there are small variations in load current and input voltage
- b)when there are large variations in load current and input voltage
- c)when there are no variations in load current and input voltage
- d)when there are small variations in load current and large variations in input voltage
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
When is a regulator used?a)when there are small variations in load cur...
The regulator has following limitations: 1.It has low efficiency for heavy load currents 2. The output voltage changes slightly due to Zener impedance. Hence, it is used when there are small variations in load current and input voltage.
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When is a regulator used?a)when there are small variations in load cur...
Regulator Usage Explanation:
Regulators are used when there are small variations in load current and input voltage. Let's break down this concept further:
Small Variations in Load Current:
- A regulator is designed to maintain a stable output voltage even when there are fluctuations in the load current. It ensures that the output voltage remains constant within a specified tolerance range despite changes in the load.
Small Variations in Input Voltage:
- In addition to load current variations, regulators also handle small fluctuations in input voltage. By regulating the input voltage, the regulator ensures that the output voltage remains steady and reliable.
Regulator Functionality:
- Regulators work by continuously adjusting their internal components to counteract changes in load current and input voltage. They use feedback mechanisms to monitor the output voltage and make real-time adjustments to maintain stability.
Importance of Regulators:
- Using a regulator is crucial in electronic circuits where a stable power supply is necessary for the proper functioning of components. Without a regulator, sensitive devices could be damaged by voltage spikes or drops.
In conclusion, regulators are essential in scenarios with small variations in load current and input voltage to ensure a consistent and reliable power supply for electronic devices.
Regulators are used when there are small variations in load current and input voltage. Let's break down this concept further:
Small Variations in Load Current:
- A regulator is designed to maintain a stable output voltage even when there are fluctuations in the load current. It ensures that the output voltage remains constant within a specified tolerance range despite changes in the load.
Small Variations in Input Voltage:
- In addition to load current variations, regulators also handle small fluctuations in input voltage. By regulating the input voltage, the regulator ensures that the output voltage remains steady and reliable.
Regulator Functionality:
- Regulators work by continuously adjusting their internal components to counteract changes in load current and input voltage. They use feedback mechanisms to monitor the output voltage and make real-time adjustments to maintain stability.
Importance of Regulators:
- Using a regulator is crucial in electronic circuits where a stable power supply is necessary for the proper functioning of components. Without a regulator, sensitive devices could be damaged by voltage spikes or drops.
In conclusion, regulators are essential in scenarios with small variations in load current and input voltage to ensure a consistent and reliable power supply for electronic devices.
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When is a regulator used?a)when there are small variations in load current and input voltageb)when there are large variations in load current and input voltagec)when there are no variations in load current and input voltaged)when there are small variations in load current and large variations in input voltageCorrect answer is option 'A'. Can you explain this answer?
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