29) If four 10 micro Farade capacitors are connected in parallel, the net capacitance is

30) The unit of electrical energy is

31) A voltage of 100V is applied to a circuit of resistance of 10ohms, the power dissipated by the resistance will be

32) When collector base and emitter base junction get forward biased then the transistor is said to be

33) An amplifier with positive feedback will work as