Electronic principles questions with answers
195 multiple-choice questions. Open any question for its answer and explanation.
- If a load resistance is 1 kW, a stiff current source has a resistance of
- A flashlight battery has internal resistance of 1W. For what values of load resistance does the flashlight battery appear stiff?
- The number of free electrons and holes in intrinsic semiconductor increases when the temperature
- Holes are the minority carriers in which type of semiconductor?
- Doubling the number of turns of wire in an inductor
- A farad is defined as the amount of capacitance necessary for
- What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz?
- A certain power transformer has a turns ratio of 5. What voltage can you expect at the secondary winding when you apply 120 V to the primary winding?
- Which one of the following statements is true for the currents in a parallel RC circuit?
- Which one of the following statements is true for current flowing in a series circuit?
- The total inductance of a series inductor circuit is
- When the graph of current versus voltage is a straight line, the device is referred to as
- Which one of the following statements most accurately applies to the frequency of a waveform?
- The merging of a free electron and a hole is called
- One henry of inductance is defined as
- The basic unit of measurement for current is the
- Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage?
- What is a negative ion?
- In a transistor operates at the middle of the load line, an increase in the base resistance will move the Q point
- Voltage is
- What is the turns ratio for the transformer specified in the above question?
- The total impedance of a series RLC circuit
- The direction of electron current flow is
- A device that converts mechanical pressure to electrical energy is called a
- Which one of the following statements is true for the voltage in a parallel RC circuit?