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Year: 2020
Topic: Semiconductor electronics: Materials, devices and simple circuits
1. The energy required to break one bond in DNA is \(10^{-20}\, \text{J}\). This value in eV is nearly

(1).0.6

(2). 0.06

(3). 0.006

(4). 6

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Year: 2025
Topic: Semiconductor electronics: Materials, devices and simple circuits
2. The output (Y) of teh given logic implementation is similar to the output of an/a _______ gate.

(1).NOR

(2). AND

(3). NAND

(4). OR

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Year: 2025
Topic: Semiconductor electronics: Materials, devices and simple circuits
3. A full wave rectifier circuit with diodes (\(\text{D}_1\)) and (\(\text{D}_2\)) is shown in teh figure. If input supply voltage \(\text{V}_\text{in}\,=\,220\,sin\left(100\pi \text{t}\right)\) volt, then at t= 15 msec

(1).(\(\text{D}_1\)) and (\(\text{D}_2\)) both are reverse biased

(2). (\(\text{D}_1\)) is forward biased, (\(\text{D}_2\)) is reverse biased

(3). (\(\text{D}_1\)) is reverse biased, (\(\text{D}_2\)) is forward biased

(4). (\(\text{D}_1\)) and (\(\text{D}_2\)) both are forward biased

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