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The resistance of a device dropped drastically when the polarity of the connection changed. The device could be a
(a)Resistor
(b)Inductor
(c)Capacitor
(d)Diode

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Important Questions on Semiconductor Electronics: Materials, Devices and Simple Circuits
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The circuit shown below contains two ideal diodes, each with a forward resistance of If the battery voltage is the current through the resistance (in amperes) is:


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In a reverse biased diode when the applied voltage changes by 1 V, the current is found to change by 0.5 A. The reverse bias resistance of the diode is

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In a P-N junction diode, the current in the reverse-biased state is due to

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Avalanche breakdown of p-n junction diode is due to

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When a junction diode is reverse biased, the flow of current across the junction is mainly due to_____.

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The forward biased diode connection is

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The given circuit has two ideal diodes connected as shown in the figure. The current flowing through the resistance will be

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When a semiconducting device is connected in series with a battery and a resistance, a current is found to flow in the circuit. If, however, the polarity of the battery is reversed, practically no current flows in the circuit. The device may be
