A silicon diode has a voltage to ground of 117 V from the anode. The voltage to ground from the cathode is 117.7 V. The diode is Group of answer choices forward-biased. reverse-biased. conducting. shorted. a diode has opened. the filter capacitor has opened. Next
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The anode has a voltage of 117 V, and the cathode has a voltage of 117.7 V. Show more…
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1- To forward-bias a diode: (a) an external voltage is applied that is positive at the anode and negative at the cathode (b) an external voltage is applied that is negative at the anode and positive at the cathode (c) an external voltage is applied that is positive at the p region and negative at the n region (d) answers (a) and (c) 2- For a silicon diode, the value of the forward-bias voltage typically: (a) must be greater than 0.3 V (b) must be greater than 0.7 V (c) depends on the width of the depletion region (d) depends on the concentration of majority carriers 3- When forward-biased, a diode: (a) conducts current (b) blocks current (c) has a high resistance (d) drops large voltage 4- A diode is normally operated in: (a) the forward-bias region (b) the reverse-bias region (c) reverse breakdown (d) either (b) or (c) 5- In the complete diode model: (a) the barrier potential is taken into account (b) the forward dynamic resistance is taken into account (c) the reverse resistance is taken into account (d) all of these 6- The average value of a half-wave rectified voltage with a peak value of 200 V is: (a) 63.7 V (b) 127.2 V (c) 141 V (d) 0 V
Manish J.
1. In the circuit besides, the diode is: (a) Unbiased (b) Reverse-biased (c) Forward-biased (d) None of the above. 2. In the circuit below, the voltage difference across the diode is: (a) 10 V (b) 0 (c) 0.7 V (d) Unspecified. 3. The current through the diode in the circuit besides is: (a) Non-zero downwards (b) Non-zero upwards (c) 0 (d) None of the above.
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