Diode Off State in Circuit Analysis
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Questions and Answers

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?

<p>3.11 mA</p> Signup and view all the answers

What is the behavior of the diode during the positive half of the input voltage?

<p>Forward biased, behaves like a closed switch</p> Signup and view all the answers

What happens to the diode during the negative half of the input voltage?

<p>Reverse biased, appears as open circuit</p> Signup and view all the answers

In a diode circuit, what does it mean when the diode is in the 'off' state?

<p>The diode is in the 'off' state when the resulting current direction does not match the arrow in the diode symbol.</p> Signup and view all the answers

What is the voltage across a resistor in a circuit when the diode current is 0 A?

<p>The voltage across the resistor is 0 V when the diode current is 0 A.</p> Signup and view all the answers

How is the voltage across the resistor related to the current flowing through it?

<p>The voltage across the resistor is equal to the current through it multiplied by its resistance.</p> Signup and view all the answers

What does Kirchhoff's voltage law state?

<p>Kirchhoff's voltage law states that the sum of the voltages in a closed loop is equal to zero.</p> Signup and view all the answers

When is a diode considered to be in the 'on' state?

<p>A diode is in the 'on' state when the applied voltage establishes a current in the direction matching the arrow of the diode symbol.</p> Signup and view all the answers

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?

<p>The voltage across the open circuit is 8 V.</p> Signup and view all the answers

What is the condition for selecting the forward biased conduction state in a diode?

<p>The current direction matches with the arrow symbol of the diode, and the applied voltage is greater than 0.7 V.</p> Signup and view all the answers

In a parallel diode configuration, how is the voltage across the parallel elements calculated?

<p>$V_o = 0.7 V$</p> Signup and view all the answers

What is the formula for calculating current $I_1$ in a circuit with diodes?

<p>$I_1 = \frac{E - V_D}{R}$</p> Signup and view all the answers

How is the current divided between two diodes in a parallel configuration?

<p>$I_D1 = I_D2 = \frac{I_1}{2}$</p> Signup and view all the answers

What is the calculated value of current $I_D$ in a circuit with $680 \Omega$ resistance and a voltage of 9.5 V?

<p>$I_D = 13.97$ mA</p> Signup and view all the answers

In the given network, if the applied voltage is 20V, what is the current direction through the diodes?

<p>Both diodes are turned 'on' as indicated by the current directions in the network.</p> Signup and view all the answers

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