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If an ideal voltage source and ideal current source are connected in series, the combination
- a)Has the same properties as a current source alone
- b)Has the same properties as a voltage source alone
- c)Has the some properties as the source which has a higher value
- d)Results in the branch being redundant
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
If an ideal voltage source and ideal current source are connected in s...
Explanation:
When an ideal voltage source and an ideal current source are connected in series, the combination has the same properties as a current source alone. This can be explained as follows:
1. Ideal voltage source:
An ideal voltage source is a two-terminal device that maintains a constant voltage across its terminals regardless of the current flowing through it. It is characterized by zero internal resistance and an infinite current capacity. In other words, it can supply any amount of current at a constant voltage.
2. Ideal current source:
An ideal current source is a two-terminal device that maintains a constant current through its terminals regardless of the voltage across it. It is characterized by zero internal resistance and an infinite voltage capacity. In other words, it can supply any voltage required to maintain the constant current.
3. Series connection:
When the ideal voltage source and the ideal current source are connected in series, the voltage across both devices is the same since they are connected in the same direction. However, the current flowing through both devices is different since they have different characteristics.
4. Combination properties:
The combination of an ideal voltage source and an ideal current source is equivalent to a current source alone since the current source maintains a constant current regardless of the voltage across it. The voltage across the combination is irrelevant since the current source will maintain the same current regardless of the voltage applied.
Conclusion:
Hence, the correct option is A, which states that the combination has the same properties as a current source alone.
When an ideal voltage source and an ideal current source are connected in series, the combination has the same properties as a current source alone. This can be explained as follows:
1. Ideal voltage source:
An ideal voltage source is a two-terminal device that maintains a constant voltage across its terminals regardless of the current flowing through it. It is characterized by zero internal resistance and an infinite current capacity. In other words, it can supply any amount of current at a constant voltage.
2. Ideal current source:
An ideal current source is a two-terminal device that maintains a constant current through its terminals regardless of the voltage across it. It is characterized by zero internal resistance and an infinite voltage capacity. In other words, it can supply any voltage required to maintain the constant current.
3. Series connection:
When the ideal voltage source and the ideal current source are connected in series, the voltage across both devices is the same since they are connected in the same direction. However, the current flowing through both devices is different since they have different characteristics.
4. Combination properties:
The combination of an ideal voltage source and an ideal current source is equivalent to a current source alone since the current source maintains a constant current regardless of the voltage across it. The voltage across the combination is irrelevant since the current source will maintain the same current regardless of the voltage applied.
Conclusion:
Hence, the correct option is A, which states that the combination has the same properties as a current source alone.
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Community Answer
If an ideal voltage source and ideal current source are connected in s...
Concept:
Ideal voltage source: An ideal voltage source have zero internal resistance.
Practical voltage source: A practical voltage source consists of an ideal voltage source (VS) in series with internal resistance (RS) as follows.
An ideal voltage source and a practical voltage source can be represented as shown in the figure.
Practical voltage source: A practical voltage source consists of an ideal voltage source (VS) in series with internal resistance (RS) as follows.
An ideal voltage source and a practical voltage source can be represented as shown in the figure.
Ideal current source: An ideal current source has infinite resistance. Infinite resistance is equivalent to zero conductance. So, an ideal current source has zero conductance.
Practical current source: A practical current source is equivalent to an ideal current source in parallel with high resistance or low conductance.
Ideal and practical current sources are represented as shown in the below figure.
Practical current source: A practical current source is equivalent to an ideal current source in parallel with high resistance or low conductance.
Ideal and practical current sources are represented as shown in the below figure.
- When an ideal voltage source and an ideal current source in series, the combination has an ideal current sources property.
- Current in the circuit is independent of any element connected in series to it.
Explanation:
In a series circuit, the current flows through all the elements is the same. Thus, any element connected in series with an ideal current source is redundant and it is equivalent to an ideal current source only.
In a parallel circuit, the voltage across all the elements is the same. Thus, any element connected in parallel with an ideal voltage source is redundant and it is equivalent to an ideal voltage source only.
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