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Which of the following statements associated with capacitor is wrong?
- a)A capacitor resists an abrupt change in the voltage across it in a manner analogous to the way a spring resists abrupt change in its displacement.
- b)A capacitor resists an abrupt change in the. current flowing through it.
- c)It is impossible to change the voltage across a capacitor even if the current through the capacitor changes by a finite amount in zero time, for this requires infinite current through the capacitor.
- d)A finite amount of energy can be stored in a capacitor even if the current through the capacitor is zero, such as when the voltage across it is constant.
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
Which of the following statements associated with capacitor is wrong?a...
Statement (b) holds true for an inductor not for a capacitor.
Most Upvoted Answer
Which of the following statements associated with capacitor is wrong?a...
Explanation:
Statement: A capacitor resists an abrupt change in the current flowing through it.
This statement is wrong. A capacitor does not resist an abrupt change in the current flowing through it. In fact, a capacitor allows a change in current to occur without any resistance.
A capacitor is an electronic component that is used to store and release electrical energy. It consists of two conducting plates separated by an insulating material called a dielectric. When a voltage is applied across the plates, the capacitor charges up and stores electrical energy in the form of an electric field.
Why is the statement wrong?
When the voltage across a capacitor changes, the charge on the plates also changes. The rate of change of charge with respect to time is known as the current. According to Ohm's Law, the current through a component is proportional to the voltage across it. However, in the case of a capacitor, this relationship is different.
The current through a capacitor is given by the equation:
I = C * dV/dt
Where I is the current, C is the capacitance, V is the voltage across the capacitor, and dt is the change in time. This equation shows that the current is directly proportional to the rate of change of voltage across the capacitor.
Key Points:
- A capacitor does not resist an abrupt change in the current flowing through it.
- The current through a capacitor is directly proportional to the rate of change of voltage across it.
- The current can change rapidly with respect to time if the voltage across the capacitor changes abruptly.
- This property of capacitors is used in various applications, such as smoothing out voltage fluctuations in power supplies and storing electrical energy in electronic circuits.
Conclusion:
The statement "A capacitor resists an abrupt change in the current flowing through it" is incorrect. A capacitor allows a change in current to occur without any resistance.
Statement: A capacitor resists an abrupt change in the current flowing through it.
This statement is wrong. A capacitor does not resist an abrupt change in the current flowing through it. In fact, a capacitor allows a change in current to occur without any resistance.
A capacitor is an electronic component that is used to store and release electrical energy. It consists of two conducting plates separated by an insulating material called a dielectric. When a voltage is applied across the plates, the capacitor charges up and stores electrical energy in the form of an electric field.
Why is the statement wrong?
When the voltage across a capacitor changes, the charge on the plates also changes. The rate of change of charge with respect to time is known as the current. According to Ohm's Law, the current through a component is proportional to the voltage across it. However, in the case of a capacitor, this relationship is different.
The current through a capacitor is given by the equation:
I = C * dV/dt
Where I is the current, C is the capacitance, V is the voltage across the capacitor, and dt is the change in time. This equation shows that the current is directly proportional to the rate of change of voltage across the capacitor.
Key Points:
- A capacitor does not resist an abrupt change in the current flowing through it.
- The current through a capacitor is directly proportional to the rate of change of voltage across it.
- The current can change rapidly with respect to time if the voltage across the capacitor changes abruptly.
- This property of capacitors is used in various applications, such as smoothing out voltage fluctuations in power supplies and storing electrical energy in electronic circuits.
Conclusion:
The statement "A capacitor resists an abrupt change in the current flowing through it" is incorrect. A capacitor allows a change in current to occur without any resistance.
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Community Answer
Which of the following statements associated with capacitor is wrong?a...
Option b is correct one
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Which of the following statements associated with capacitor is wrong?a)A capacitor resists an abrupt change in the voltage across it in a manner analogous to the way a spring resists abrupt change in its displacement.b)A capacitor resists an abrupt change in the. current flowing through it.c)It is impossible to change the voltage across a capacitor even if the current through the capacitor changes by a finite amount in zero time, for this requires infinite current through the capacitor.d)A finite amount of energy can be stored in a capacitor even if the current through the capacitor is zero, such as when the voltage across it is constant.Correct answer is option 'B'. Can you explain this answer?
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