Which of the following gates will give an output '1' for the given inputs?

For a common-emitter amplifier, the voltage gain is 40. Its input and output impedances are $$100 \Omega$$ and $$400 \Omega$$, respectively. The power gain of the CE amplifier will be

Choose the correct statement. In semiconductors valance band and conduction band

A logic gate which gives output 'HIGH' only when its two input terminals are at different logic levels with respect to each other is