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The current-limiting resistor in a Zener diode circuit is used to regulate the input voltage.
True
100%
False
0%
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What is the significance of the Zener diode's breakdown voltage in a regulation circuit?
It defines the maximum reverse current.
0%
It determines the input voltage range.
0%
It sets the voltage level at which regulation occurs.
0%
It defines the minimum load resistance.
0%
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If Peak input voltage is 100 V than peak output voltage will be…………….
100.7 V
0%
100.3 V
❌
9 V
0%
99.3 V
0%
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If RMS voltage of full wave bridge rectifier is 115 V than peak primary voltage is equals to……
15.6 V
0%
163 V
0%
453 V
0%
123 V
0%
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In the Zener diode I-V characteristic, what does I
ZM
indicate?
The reverse current at the Zener breakdown.
❌
The current at which the Zener voltage is stabilized.
❌
The current at which the Zener diode is operating in avalanche breakdown.
❌
The maximum current beyond which the diode might be damaged.
✅
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Which material was used in early LEDs to emit IR radiation?
Germanium
❌
Silicon
❌
Gallium Arsenide
✅
Copper Oxide
❌
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Zener diodes are ideal for high efficiency in high current applications.
True
0%
False
100%
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When a 60 Hz sinusoidal voltage is applied to the input of a half-wave rectifier, the output frequency is………………..
120 Hz
❌
60 Hz
✅
30 Hz
❌
0 Hz
❌
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Zener diodes operate by allowing current to flow in both directions in the breakdown region.
True
0%
False
100%
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What is the typical lifespan of LEDs compared to incandescent bulbs?
Shorter
0%
Similar
0%
Longer
0%
Cannot be determined
0%
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