<<PREV>> <<NEXT>>
191) The potential barrier in depletion layer is due to ions. 192) The energy stored in a capacitor is actually stored between the plates. 193) An inductor stores energy in its magnetic field. 194) If two ends p & n of a p-n diode junction joined by a wire. There will be a steady current from p-side to n-side. 195) The law of electromagnetic induction have been used in construction of a generator. 196) The material of wire used for potentiometer is manganin. 197) In photoelectric emission, the number of electrons ejected per second is proportional to intensity of light. 198) When a PN junction diode is reverse biased, the flow of current across the junction is mainly due to diffusion charges. 199)We use a thick wire in secondary of a step down transformer to reduce production of heat. 200)Quasar emits radio waves more than radio galaxy. 201)Susceptibility of a magnetic substance is found on temperature and strength of magnetising field. The material is Ferro magnetic. 202)The power factor of a ac circuit has value when the circuit contains only a resistance.
203)The PD between two electrodes of a galvanic cell in an open circuit is known as electromotive force. 204)When a current flows in a wire, there exists an electric field in the direction of flow of current.
205)Curie temperature of iron is the temperature below which it is ferromagnetic. |