Question

State, with reasons, whether the following statements are True or False. i) Ideal voltage source has infinite internal resistance. ii) Transformer is a passive device hence it cannot increase the voltage. iii) Field effect transistor (FET) is a current controlled device. iv) Forward biasing of a semiconductor junction diode reduces its energy band gap. v) Amplifier with common collector mode offers maximum voltage gain. vi) Ripple factor of a center tapped full wave rectifier is greater than that of a bridge rectifier, which uses four diodes. vii) Operational amplifier in non-inverting mode cannot amplify negative signals. viii) IC LM380 is a small signal amplifier used to amplify the voltage. ix) Largest decimal number represented by a 2-digit hex number is 99. x) In a CRO sweep generator output is given to the vertical deflection plates.

Answer 1

1)true
2)false
3)false
4)false
5)false
9)true