1st PUC physics Series-5 December 3, 2020December 23, 2020wefru PUC Science 1st Year Physics Series-5 quiz 0 Created on December 02, 2020 By wefru 1st PUC Physics Series 5 TEST YOUR KNOWLEDGE OF SCIENCE 1 / 10 Q.41 In the forward bias arrangements of a PN junction diode The P end is connected to the positive terminal of the battery The N end is connected to the positive terminal of the battery The direction of the current is from N end to the P end in the diode The P end is connected to the negative terminal of the battery 2 / 10 Q.42 In a PN junction diode The current in the reverse biased condition is generally very small The current in the reverse biased condition is generally very small but the forward-biased current is independent of the bias voltage The reverse-biased current is strongly dependent on the applied bias voltage The forward biased current is very small in comparison to reverse-biased current. 3 / 10 Q.43 The cut-in voltage for silicon diode is approximately 0.6 V 0.2 V 0.3 V 0.5 V 4 / 10 Q.44 The electrical resistance of the depletion layer is large because It has no change carriers It has a large number of charge carriers It contains electrons as charge carriers It has holes as charge carriers 5 / 10 Q.45 If the forward voltage in a semiconductor diode is doubled, the width of the depletion layer will Become half Become one-fourth Remain unchanged Become double 6 / 10 Q.46 The PN junction diode is used as An amplifier A rectifier An oscillator A modulator 7 / 10 Q.47 When a PN junction diode is reverse biased Electrons and holes move away from the junction depletion region Electrons and holes are attracted towards each other and move towards the depletion region Height of the potential barrier decreases No change in the current takes place 8 / 10 Q.48 A PN junction has a thickness of the order 10-6 m 10-66 m 11-6 m 25 m 9 / 10 Q.49 In the depletion region of an unbiased PN junction diode there are Only electrons Both electrons and holes Only fixed ions Only holes 10 / 10 Q.50 On increasing the reverse bias to a large value in a PN junction diode, current Suddenly increases Decreases slowly Increases slowly Remains fixed Your score isThe average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz