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The voltage across a diode in a full-wave rectifier having input voltage of peak value Vm during its non-conducting period is :
- a)-2Vm
- b)-Vm
- c)-4Vm
- d)0
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The voltage across a diode in a full-wave rectifier having input volta...
During non-conducting period, the voltage across D1 is Vm. = -2Vm.
The correct answer is:
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The voltage across a diode in a full-wave rectifier having input volta...
Explanation:
In a full-wave rectifier, the input voltage is an alternating current (AC) waveform, while the output voltage is a direct current (DC) waveform. The diode in the rectifier allows current to flow in only one direction, blocking the reverse current.
During the non-conducting period of the diode, when the input voltage is negative and below the diode threshold voltage, the diode is reverse biased and does not conduct. In this period, the voltage across the diode is equal to the input voltage.
Now, let's analyze the given options:
a) -2Vm: This option suggests that the voltage across the diode during its non-conducting period is twice the peak value of the input voltage in the negative direction. This is incorrect because the diode does not conduct during this period, so the voltage across it remains equal to the input voltage.
b) -Vm: This option suggests that the voltage across the diode during its non-conducting period is equal to the peak value of the input voltage in the negative direction. This is incorrect because the diode does not conduct during this period, so the voltage across it remains equal to the input voltage.
c) -4Vm: This option suggests that the voltage across the diode during its non-conducting period is four times the peak value of the input voltage in the negative direction. This is incorrect because the diode does not conduct during this period, so the voltage across it remains equal to the input voltage.
d) 0: This option suggests that the voltage across the diode during its non-conducting period is zero. This is incorrect because the diode does not conduct during this period, so the voltage across it remains equal to the input voltage.
Therefore, the correct answer is option 'A' (-2Vm), which states that the voltage across the diode during its non-conducting period is equal to the peak value of the input voltage in the negative direction.
In a full-wave rectifier, the input voltage is an alternating current (AC) waveform, while the output voltage is a direct current (DC) waveform. The diode in the rectifier allows current to flow in only one direction, blocking the reverse current.
During the non-conducting period of the diode, when the input voltage is negative and below the diode threshold voltage, the diode is reverse biased and does not conduct. In this period, the voltage across the diode is equal to the input voltage.
Now, let's analyze the given options:
a) -2Vm: This option suggests that the voltage across the diode during its non-conducting period is twice the peak value of the input voltage in the negative direction. This is incorrect because the diode does not conduct during this period, so the voltage across it remains equal to the input voltage.
b) -Vm: This option suggests that the voltage across the diode during its non-conducting period is equal to the peak value of the input voltage in the negative direction. This is incorrect because the diode does not conduct during this period, so the voltage across it remains equal to the input voltage.
c) -4Vm: This option suggests that the voltage across the diode during its non-conducting period is four times the peak value of the input voltage in the negative direction. This is incorrect because the diode does not conduct during this period, so the voltage across it remains equal to the input voltage.
d) 0: This option suggests that the voltage across the diode during its non-conducting period is zero. This is incorrect because the diode does not conduct during this period, so the voltage across it remains equal to the input voltage.
Therefore, the correct answer is option 'A' (-2Vm), which states that the voltage across the diode during its non-conducting period is equal to the peak value of the input voltage in the negative direction.
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The voltage across a diode in a full-wave rectifier having input voltage of peak value Vm during its non-conducting period is :a)-2Vmb)-Vmc)-4Vmd)0Correct answer is option 'A'. Can you explain this answer?
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