Electronic Principles
The voltage across a 1N4001 is 0.93V when the current is 1A. What is the power dissipation of the diode for these values?

9.3 W
0.041666666666667
0.93 V
0.93 W
None of these

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Electronic Principles
Which one of the following phrases most accurately describes a purely inductive circuit?

Inductive reactance provides the only opposition to current flow
Resistances provide the only opposition to current flow
The ac voltage lags the current by 90 degree
None of these
Combinations of resistance and inductive reactance provide any opposition to current flow

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Electronic Principles
Which one of the following principles best describes the basic operation of a generator?

None of these
Current is induced in a conductor that is moving through a magnetic field
Like magnetic poles repel; unlike poles attract
Like magnetic poles attract; unlike poles repel
Current flowing through a conductor generates a magnetic field

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Electronic Principles
Which one of the following statements is true for the impedance of a series RC circuit?

None of these
The impedance is greater than either the resistance or capacitive reactance but less than their sum
The impedance is less than the sum of the resistance and capacitive reactance
The impedance is greater than the sum of the resistance and capacitive reactance
The impedance is equal to the sum of the resistance and capacitive reactance

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Electronic Principles
Which one of the following statements is true for the currents in a parallel RC circuit?

The total current is less than the sum of the currents for the resistance and capacitance
The total current. is greater than the sum of the currents for the resistance and capacitance
None of these
The total current is equal to the sum of the currents for the resistance and capacitance
The current always has the same amplitude and phase for every part of the circuit

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