Q. Silicon is not suitable for fabrication of light emitting diodes because it is

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Q. In an ideal diode there is no breakdown, no __________ current, and no forward __________ drop.

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Q. Hall effect is observed in a specimen when it is carrying current and is placed in a magnetic field. The resultant electric field inside the specimen is

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Q. When diodes are connected in series to increase voltage rating the peak inverse voltage per junction

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Q. Permalloy is

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Q. Assertion (A): A JFET can be used as a current source.

Reason (R): In beyond pinch off region the current in JFET is nearly constant.

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Q. The effect of current shunt feedback in an amplifier is to

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Q. In the sale of diamonds the unit of weight is carat. One carat is equal to

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Q. For a P-N diode, the number of minority carriers crossing the junction depends on

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Q. As compared to bipolar junction transistor, a FET

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Q. The first dominant pole encountered in the frequency response of a compensated op-amp is approximately at

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Q. A Schottky diode clamp is used along with a switching BJT for

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Q. In a junction transistor, the collector cut-off current 'ICB0' reduces considerably by doping the

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Q. For a semiconductor, the conductivity is a function of the products of the number of charge carriers and their mobilites. As result, if the temperature of a slab of intrinsic silicon increases, how does its conductivity vary?

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Q. Maximum rectification efficiency for a half wave rectifier is

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Q. Resistivity of copper is nearly

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Q. Free electrons exist in

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Q. An ideal Op-amp is an ideal

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Q. The addition of p type impurity to intrinsic material creates allowable energy levels.

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Q. The term efficacy, is defined by

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