A device that converts thermal energy to electrical energy is called a:

Electronic Principles
A device that converts thermal energy to electrical energy is called a:

thermocouple

solar cell

None of these

piezoelectric devices

chemical cell

thermocouple

solar cell

None of these

piezoelectric devices

chemical cell

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Electronic Principles
A high-pass filter:

has no effect on ac signals

None of these

passes lower-frequency signals and reduces higher-frequency signals

passes higher-frequency signals and reduces lower-frequency signals

increases the level of all frequencies by a significant amount

has no effect on ac signals

None of these

passes lower-frequency signals and reduces higher-frequency signals

passes higher-frequency signals and reduces lower-frequency signals

increases the level of all frequencies by a significant amount

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Electronic Principles
Which one of the following statements is true for current flowing in a series circuit?

None of these

The amount of current flow through each part of a series circuit can be different, depending on the resistance of each part and the amount of voltage applied to it

The same current flows through every part of a series circuit

The total current in a series circuit is equal to the sum of the currents flowing through the individual components in the circuit

The total current in a series circuit is equal to the total voltage multiplied by the total resistance

None of these

The amount of current flow through each part of a series circuit can be different, depending on the resistance of each part and the amount of voltage applied to it

The same current flows through every part of a series circuit

The total current in a series circuit is equal to the sum of the currents flowing through the individual components in the circuit

The total current in a series circuit is equal to the total voltage multiplied by the total resistance

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Electronic Principles
The peak value of a sine waveform is:

the maximum positive or negative value

None of these

the amplitude at 90% of the maximum value

the amplitude at 70.7% of the maximum value

the amplitude at 1.41 times the maximum value

the maximum positive or negative value

None of these

the amplitude at 90% of the maximum value

the amplitude at 70.7% of the maximum value

the amplitude at 1.41 times the maximum value

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Electronic Principles
When the collector current increases, what does the current gain do?

None of these

stays the same

decreases

increases

any of the above

None of these

stays the same

decreases

increases

any of the above

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Electronic Principles
The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be:

Twice the primary current

One-half the primary current

Same as the primary current

None of these

No more than 10% less than the primary current

Twice the primary current

One-half the primary current

Same as the primary current

None of these

No more than 10% less than the primary current

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Electronic Principles

Electronic Principles A device that converts thermal energy to electrical energy is called a:

Electronic Principles A high-pass filter:

Electronic Principles Which one of the following statements is true for current flowing in a series circuit?

Electronic Principles The peak value of a sine waveform is:

Electronic Principles When the collector current increases, what does the current gain do?

Electronic Principles The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be:

Electronic Principles
A device that converts thermal energy to electrical energy is called a:

Electronic Principles
A high-pass filter:

Electronic Principles
Which one of the following statements is true for current flowing in a series circuit?

Electronic Principles
The peak value of a sine waveform is:

Electronic Principles
When the collector current increases, what does the current gain do?

Electronic Principles
The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be: