18 Questions
What is the current through resistor R1?
0.212 mA
What is the voltage across resistor R2?
18.6 V
What is the current through resistor R2?
3.32 mA
What is the current ID2 at node a?
3.11 mA
What is the behavior of the diode during the positive half of the input voltage?
Forward biased, behaves like a closed switch
What happens to the diode during the negative half of the input voltage?
Reverse biased, appears as open circuit
In a diode circuit, what does it mean when the diode is in the 'off' state?
The diode is in the 'off' state when the resulting current direction does not match the arrow in the diode symbol.
What is the voltage across a resistor in a circuit when the diode current is 0 A?
The voltage across the resistor is 0 V when the diode current is 0 A.
How is the voltage across the resistor related to the current flowing through it?
The voltage across the resistor is equal to the current through it multiplied by its resistance.
What does Kirchhoff's voltage law state?
Kirchhoff's voltage law states that the sum of the voltages in a closed loop is equal to zero.
When is a diode considered to be in the 'on' state?
A diode is in the 'on' state when the applied voltage establishes a current in the direction matching the arrow of the diode symbol.
If a diode is in the 'on' state with VD = 0.7 V and VR = 7.3 V, what is the voltage across the open circuit?
The voltage across the open circuit is 8 V.
What is the condition for selecting the forward biased conduction state in a diode?
The current direction matches with the arrow symbol of the diode, and the applied voltage is greater than 0.7 V.
In a parallel diode configuration, how is the voltage across the parallel elements calculated?
$V_o = 0.7 V$
What is the formula for calculating current $I_1$ in a circuit with diodes?
$I_1 = \frac{E - V_D}{R}$
How is the current divided between two diodes in a parallel configuration?
$I_D1 = I_D2 = \frac{I_1}{2}$
What is the calculated value of current $I_D$ in a circuit with $680 \Omega$ resistance and a voltage of 9.5 V?
$I_D = 13.97$ mA
In the given network, if the applied voltage is 20V, what is the current direction through the diodes?
Both diodes are turned 'on' as indicated by the current directions in the network.
Explore the process of determining the resulting current direction in a circuit when the diode is in the 'off' state. Learn how to redraw the network diagram with the equivalent circuit and calculate the voltage across the resistor. Practice applying Kirchhoff's voltage law to establish the voltage across the open circuit.
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