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A bulb and a capacitor are connected in series to a source of alternating current. If its frequency is increased, while keeping the voltage of the souce constant, then
- a)Bulb will give more intense light
- b)Bulb will give less intense light
- c)Bulb will give light of same intensity as before
- d)Bulb will stop radiating light
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
A bulb and a capacitor are connected in series to a source of alternat...
When a bulb and a capacitor are connected in series to an ac source, then on increasing the frequency the current in the circuit is increased, because the impedance of the circuit is decreased. So the bulb will give more intense light
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A bulb and a capacitor are connected in series to a source of alternat...
Explanation:
Introduction:
In order to understand why the bulb will give more intense light when the frequency of the source is increased while keeping the voltage constant, we need to consider the properties of both the bulb and the capacitor.
Bulb:
The bulb is a device that produces light by passing an electric current through a filament, which gets heated up and emits light as a result. The intensity of light emitted by the bulb is directly proportional to the power dissipated in the filament, which in turn depends on the current passing through the bulb.
Capacitor:
A capacitor is a device that stores electrical energy in an electric field. It has the property of capacitance, which determines the amount of charge it can store for a given voltage. The reactance of a capacitor is inversely proportional to the frequency of the alternating current passing through it, and it is given by the equation Xc = 1/(2πfC), where Xc is the reactance, f is the frequency, and C is the capacitance.
Effect of increasing frequency:
When the frequency of the source is increased, the reactance of the capacitor decreases. This means that at higher frequencies, the capacitor offers less opposition to the flow of current. As a result, more current is able to flow through the circuit, including the bulb.
Effect on bulb:
Since the bulb is connected in series with the capacitor, the increase in current passing through the circuit will also pass through the bulb. As a result, the bulb will receive a higher current at higher frequencies, leading to an increase in the power dissipated in the filament. This increase in power will cause the bulb to emit more intense light.
Conclusion:
In summary, when the frequency of the source is increased while keeping the voltage constant, the reactance of the capacitor decreases, allowing more current to flow through the circuit. This increase in current causes the bulb to receive a higher current, leading to an increase in the power dissipated in the filament and resulting in more intense light being emitted by the bulb.
Introduction:
In order to understand why the bulb will give more intense light when the frequency of the source is increased while keeping the voltage constant, we need to consider the properties of both the bulb and the capacitor.
Bulb:
The bulb is a device that produces light by passing an electric current through a filament, which gets heated up and emits light as a result. The intensity of light emitted by the bulb is directly proportional to the power dissipated in the filament, which in turn depends on the current passing through the bulb.
Capacitor:
A capacitor is a device that stores electrical energy in an electric field. It has the property of capacitance, which determines the amount of charge it can store for a given voltage. The reactance of a capacitor is inversely proportional to the frequency of the alternating current passing through it, and it is given by the equation Xc = 1/(2πfC), where Xc is the reactance, f is the frequency, and C is the capacitance.
Effect of increasing frequency:
When the frequency of the source is increased, the reactance of the capacitor decreases. This means that at higher frequencies, the capacitor offers less opposition to the flow of current. As a result, more current is able to flow through the circuit, including the bulb.
Effect on bulb:
Since the bulb is connected in series with the capacitor, the increase in current passing through the circuit will also pass through the bulb. As a result, the bulb will receive a higher current at higher frequencies, leading to an increase in the power dissipated in the filament. This increase in power will cause the bulb to emit more intense light.
Conclusion:
In summary, when the frequency of the source is increased while keeping the voltage constant, the reactance of the capacitor decreases, allowing more current to flow through the circuit. This increase in current causes the bulb to receive a higher current, leading to an increase in the power dissipated in the filament and resulting in more intense light being emitted by the bulb.
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A bulb and a capacitor are connected in series to a source of alternating current. If its frequency is increased, while keeping the voltage of the souce constant, thena)Bulb will give more intense lightb)Bulb will give less intense lightc)Bulb will give light of same intensity as befored)Bulb will stop radiating lightCorrect answer is option 'A'. Can you explain this answer?
Question Description
A bulb and a capacitor are connected in series to a source of alternating current. If its frequency is increased, while keeping the voltage of the souce constant, thena)Bulb will give more intense lightb)Bulb will give less intense lightc)Bulb will give light of same intensity as befored)Bulb will stop radiating lightCorrect answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A bulb and a capacitor are connected in series to a source of alternating current. If its frequency is increased, while keeping the voltage of the souce constant, thena)Bulb will give more intense lightb)Bulb will give less intense lightc)Bulb will give light of same intensity as befored)Bulb will stop radiating lightCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A bulb and a capacitor are connected in series to a source of alternating current. If its frequency is increased, while keeping the voltage of the souce constant, thena)Bulb will give more intense lightb)Bulb will give less intense lightc)Bulb will give light of same intensity as befored)Bulb will stop radiating lightCorrect answer is option 'A'. Can you explain this answer?.
A bulb and a capacitor are connected in series to a source of alternating current. If its frequency is increased, while keeping the voltage of the souce constant, thena)Bulb will give more intense lightb)Bulb will give less intense lightc)Bulb will give light of same intensity as befored)Bulb will stop radiating lightCorrect answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A bulb and a capacitor are connected in series to a source of alternating current. If its frequency is increased, while keeping the voltage of the souce constant, thena)Bulb will give more intense lightb)Bulb will give less intense lightc)Bulb will give light of same intensity as befored)Bulb will stop radiating lightCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A bulb and a capacitor are connected in series to a source of alternating current. If its frequency is increased, while keeping the voltage of the souce constant, thena)Bulb will give more intense lightb)Bulb will give less intense lightc)Bulb will give light of same intensity as befored)Bulb will stop radiating lightCorrect answer is option 'A'. Can you explain this answer?.
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A bulb and a capacitor are connected in series to a source of alternating current. If its frequency is increased, while keeping the voltage of the souce constant, thena)Bulb will give more intense lightb)Bulb will give less intense lightc)Bulb will give light of same intensity as befored)Bulb will stop radiating lightCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for A bulb and a capacitor are connected in series to a source of alternating current. If its frequency is increased, while keeping the voltage of the souce constant, thena)Bulb will give more intense lightb)Bulb will give less intense lightc)Bulb will give light of same intensity as befored)Bulb will stop radiating lightCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of A bulb and a capacitor are connected in series to a source of alternating current. If its frequency is increased, while keeping the voltage of the souce constant, thena)Bulb will give more intense lightb)Bulb will give less intense lightc)Bulb will give light of same intensity as befored)Bulb will stop radiating lightCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
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