For CE transistor amplifier, the audio signal voltage across the collector resistance of 4 k$$\Omega$$ is 5 V. If the current amplification factor of the transistor is 100 and base resistance is 2 k$$\Omega$$, then input signal voltage is

Which of the following gate give the similar output as the output of circuit diagram shown in the figure?

Choose the incorrect statements.

Find the logic gate, when both the inputs are high but the output is low and vice-versa.