WorksheetsPage 1
Total questions: 10
Worksheet time: 5mins
Refer to the diagram showing a diode symbol labeled a on the left and k on the right with a green arrow labeled Current pointing to the right and a red arrow labeled No current pointing to the left. Which statement best describes the permitted direction of conventional current through the diode as shown?
From a to k (to the right)
From k to a (to the left)
Equally in both directions
Only when reverse-biased
According to the red I–V curve shown on the axes labeled I (vertical) and V (horizontal), which description matches the diode’s forward characteristic?
Current remains near zero until a small forward voltage is reached, then rises rapidly
Current increases linearly with forward voltage from zero
Current is high at zero voltage and decreases with increasing forward voltage
Current flows equally for positive and negative voltages
Based on the text, this presentation will explore how the characteristic of a diode allows it to be used as which type of circuit element?
Rectifier
Amplifier
Oscillator
Low-pass filter
The pictured wireless mouse includes a specific component to prevent current flowing in the wrong direction if the battery is inserted the wrong way. Which component is used for this protection?
Diode
Resistor
Capacitor
Inductor
According to the description, what happens when a diode is forward biased?
It allows current to pass
It prevents any current from flowing
It converts all AC to DC without additional circuitry
It reduces the applied voltage to zero
Match each label or condition from the diagram and text to its correct meaning or behavior.
Forward biased
Allows current to pass
Reverse biased
Prevents current from flowing
Axis labeled I
Current
Axis labeled V
Voltage
From the red I–V curve near the labeled reverse breakdown region, how does the diode current behave when the reverse bias approaches and exceeds VRmax ?
It decreases smoothly toward zero as reverse voltage increases
It remains nearly constant at a small negative current
It increases sharply in the reverse direction, indicating breakdown
It oscillates periodically with increasing reverse voltage
According to the rectifier description, why is the diode useful in a rectifier circuit? The text states that it will only allow current to flow in one direction.
It allows current to flow in only one direction.
It stores charge to smooth the voltage.
It amplifies small signals into larger ones.
It generates alternating current from direct current.
During an AC waveform in the rectifier circuit, when does the diode stop the current from flowing? The text specifies the behavior during negative half-cycles.
During the negative half-cycles
During the positive half-cycles
During both the positive and negative half-cycles
It never stops current in this circuit
What is the overall effect of the rectifier circuit described? The text states that AC is converted to DC.
Alternating current is converted to direct current.
Direct current is converted to alternating current.
The amplitude of the AC signal is doubled.
The voltage polarity is continuously reversed.
