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Electronics and Communication Digital Electronics Difficulty: Medium

Match List-I (Application of the circuit) with List-II (Circuit Name) and select the correct answer using the options given below the lists: List-I (Application of the circuit) List-II (Circuit Name) a. Divider 1. Astable multivibrator b. Clips input voltage at two predetermined Levels 2. Schmitt trigger c. Square wave generator 3. Bistable multivibrator d. Narrow current pulse generator 4. Blocking oscillator DVD uses Which one of the following expressions may be used to correctly describe the temperature (T) variation of the intrinsic carrier density (n i ) of a semiconductor? E g is the band gap, A is pre-factor's k is Boltzmann constant. The magnitude of Coulomb's force of repulsion between two alpha particles (helium ions) in space 10 mm apart is: Companding in PCM systems lead to improved signal to quantization noise ratio. This improvement is for