| 1. | The most significant factor in the relative manufacturing cost of components is ? | |
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the area occupied by the component
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the position of the component on the slice
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number of electrode connections
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the shape of the component
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Report Question| 2. | Which one of the following statements is correct In the context of IC fabrication, metallisation means ? | |
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connecting metallic wires
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covering with a metallic cap
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formation of interconnecting conduction pattern and bonding pads
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doping SiO, layer
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| 3. | The drain-source voltage at which drain current becomes nearly constant, is called ? | |
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pinch-off voltage
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pick-off voltage
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breakdown voltage
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barrier voltage
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| 4. | Why npn transistors are preferred over pnp-transistors ? | |
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Mobility of majority carrier in npn transistors is greater. than the mobility of majority carrier in pnp transistors
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Bias voltage required in npn is greater than in pnp-transistors
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Bias voltage required in npn is less than in pnp transistors
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Leakage current in npn transistors is less than pap-transistors
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| 5. | In a properly biased N-P-N transistor, most of the electrons from the emitter ? | |
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are stopped by the function barrier
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pass to the collector through the base
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recombine with holes in base
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recombine with holes in emitter itself
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| 6. | For correct working of an N-P-N bipolar junction transistor, the different electrodes should have the following polarities with respect to an emitter ? | |
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collector -ve, base-ve
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collector +ve, base-ve
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collector +ve, base +ve
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collector -ve, base +ve
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| 7. | An electron device means the device in which the conduction of electrons takes place through ? | |
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a gas, semiconductor or vacuum
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a gas
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a semiconductor
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vacuum
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| 8. | In a bipolar transistor at room temperature, if the emitter current doubled the voltage across its base-emitter junction ? | |
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halves
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increases by about 20 mV
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doubles
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decreases by about 20 mV
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| 9. | JFET has main drawback of ? | |
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having small gain-bandwidth product
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having high output impedance
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having low input impedance
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being noisy
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| 10. | What is the main advantage of a JEET cascade amplifier ? | |
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Low output impedance
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High voltage gain
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High input impedance
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Very low input capacitance
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