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Consider the following statements associated with the use of h-parameters to describe a transistor:
1. They are easy to measure.
2. They are real numbers for all frequency range.
3. They are easily convertible from one configuration to other.
4. The smallest value of h-parameter; for a transistor configuration is that of short circuit input impedance (hi).
1. They are easy to measure.
2. They are real numbers for all frequency range.
3. They are easily convertible from one configuration to other.
4. The smallest value of h-parameter; for a transistor configuration is that of short circuit input impedance (hi).
Which of the statements given above are correct?
- a)2 and 4
- b)2 only
- c)1 and 3
- d)1 only
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
Consider the following statements associated with the use of h-paramet...
h-parameters are real numbers upto radio frequency only. The smallest value of h-parameter is that of open circuit output admittance (h0). Hence, statements 2 and 4 are not correct.
Most Upvoted Answer
Consider the following statements associated with the use of h-paramet...
Explanation:
h-parameters, also known as hybrid parameters or hybrid-π parameters, are a set of four parameters commonly used to describe the behavior of a transistor in a linear operating region. The correct statements associated with the use of h-parameters are as follows:
1. They are easy to measure:
h-parameters can be easily measured by performing a set of standard tests on the transistor. These measurements involve applying known input voltages and currents and measuring the resulting output voltages and currents. Therefore, statement 1 is correct.
2. They are real numbers for all frequency range:
h-parameters are typically considered to be frequency-independent for small-signal analysis. In other words, they can be assumed to be constant over a certain frequency range. However, at high frequencies or for large-signal analysis, the h-parameters may vary with frequency or signal level. Therefore, statement 2 is incorrect.
3. They are easily convertible from one configuration to another:
One of the advantages of h-parameters is that they can be easily converted from one transistor configuration to another. For example, the h-parameters for a common-emitter configuration can be converted to those for a common-base or common-collector configuration using simple equations. Therefore, statement 3 is correct.
4. The smallest value of h-parameter for a transistor configuration is that of short circuit input impedance (hi):
The h-parameters describe the input and output impedance, as well as the voltage and current gain of a transistor. The smallest value of h-parameter for a specific transistor configuration depends on the particular application and operating conditions. Therefore, statement 4 is incorrect.
In summary, the correct statements associated with the use of h-parameters to describe a transistor are:
1. They are easy to measure.
3. They are easily convertible from one configuration to another.
Therefore, the correct answer is option C: 1 and 3.
h-parameters, also known as hybrid parameters or hybrid-π parameters, are a set of four parameters commonly used to describe the behavior of a transistor in a linear operating region. The correct statements associated with the use of h-parameters are as follows:
1. They are easy to measure:
h-parameters can be easily measured by performing a set of standard tests on the transistor. These measurements involve applying known input voltages and currents and measuring the resulting output voltages and currents. Therefore, statement 1 is correct.
2. They are real numbers for all frequency range:
h-parameters are typically considered to be frequency-independent for small-signal analysis. In other words, they can be assumed to be constant over a certain frequency range. However, at high frequencies or for large-signal analysis, the h-parameters may vary with frequency or signal level. Therefore, statement 2 is incorrect.
3. They are easily convertible from one configuration to another:
One of the advantages of h-parameters is that they can be easily converted from one transistor configuration to another. For example, the h-parameters for a common-emitter configuration can be converted to those for a common-base or common-collector configuration using simple equations. Therefore, statement 3 is correct.
4. The smallest value of h-parameter for a transistor configuration is that of short circuit input impedance (hi):
The h-parameters describe the input and output impedance, as well as the voltage and current gain of a transistor. The smallest value of h-parameter for a specific transistor configuration depends on the particular application and operating conditions. Therefore, statement 4 is incorrect.
In summary, the correct statements associated with the use of h-parameters to describe a transistor are:
1. They are easy to measure.
3. They are easily convertible from one configuration to another.
Therefore, the correct answer is option C: 1 and 3.
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Consider the following statements associated with the use of h-parameters to describe a transistor:1. They are easy to measure.2. They are real numbers for all frequency range.3. They are easily convertible from one configuration to other.4. The smallest value of h-parameter; for atransistor configuration is that of short circuit input impedance (hi).Which of the statements given above are correct?a)2 and 4b)2 onlyc)1 and 3d)1 onlyCorrect answer is option 'C'. Can you explain this answer?
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