[{"id":119784,"question":"For a n-p-n transistor, the conventional current equation can be written as","choices":[{"text":"I<sub>E</sub>+ I<sub>C</sub>= I<sub>B</sub>","value":"A"},{"text":"I<sub>C</sub>- I<sub>B</sub>= I<sub>E</sub>","value":"B"},{"text":"I<sub>C</sub>+ I<sub>B</sub>= I<sub>E</sub>","value":"C"},{"text":"I<sub>B</sub>+ I<sub>E</sub>= I<sub>C</sub>","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":119781,"question":"In a normally biased n-p-n transistor, an electron c current I<sub>E</sub>flows from the","choices":[{"text":"emitter into the base","value":"A"},{"text":"collector into the base","value":"B"},{"text":"base into collector","value":"C"},{"text":"none of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":119779,"question":"In n-p-n transistor, emitter base junction is kept","choices":[{"text":"reversed","value":"A"},{"text":"forward biased","value":"B"},{"text":"may be reversed or may be forward biased","value":"C"},{"text":"none of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":119777,"question":"For normal operation of transistor, the batteries","choices":[{"text":"V<sub>CC</sub>is of much lower value than V<sub>BB</sub>","value":"A"},{"text":"V<sub>CC</sub>is of much higher value than V<sub>BB</sub>","value":"B"},{"text":"V<sub>CC is equal to</sub>V<sub>BB</sub>","value":"C"},{"text":"none of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":119775,"question":"For the normal operation of the transistor, its","choices":[{"text":"emitter-base and collector base junctions are forward biased","value":"A"},{"text":"emitter-base junction is reversed biased and collector base junction is forward biased","value":"B"},{"text":"emitter-base junction is forward biased and collector-base junction is reverse biased","value":"C"},{"text":"any one of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":119772,"question":"Which of the following has a great concentration of impurity","choices":[{"text":"base","value":"A"},{"text":"emitter","value":"B"},{"text":"collector","value":"C"},{"text":"none of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":119770,"question":"In a transistor, the central region is called","choices":[{"text":"collector","value":"A"},{"text":"emitter","value":"B"},{"text":"base","value":"C"},{"text":"none of them","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":119768,"question":"In a transistor, if the central region is n-type, then this type of transistor is known as","choices":[{"text":"n-p-n transistor","value":"A"},{"text":"p-n-p transistor","value":"B"},{"text":"either of these","value":"C"},{"text":"none of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":119568,"question":"In a transistor, if the central region is p-type then this type of transistor is known as","choices":[{"text":"p-n-p transistor","value":"A"},{"text":"n-p-n transistor","value":"B"},{"text":"either of these","value":"C"},{"text":"none of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":119567,"question":"Which of the following diodes can operate in the reverse biased condition","choices":[{"text":"photo diode","value":"A"},{"text":"light emitting diode","value":"B"},{"text":"photo voltaic cell","value":"C"},{"text":"none of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":119566,"question":"Which of the following diode is used to derive the current in external circuit when light is incident in the circuit","choices":[{"text":"photo diode","value":"A"},{"text":"light emitting diode","value":"B"},{"text":"photo voltaic cell","value":"C"},{"text":"none of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":111066,"question":"Which of the following diode is used for the detection of light","choices":[{"text":"photo diode","value":"A"},{"text":"light emitting diode","value":"B"},{"text":"photo voltaic cell","value":"C"},{"text":"all of them","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":111060,"question":"In which of the following diodes when an electron combines with a hole during the forward biasing, photon of visible light is emitted.","choices":[{"text":"photo diode","value":"A"},{"text":"light emitting diode","value":"B"},{"text":"photo voltaic cell","value":"C"},{"text":"all of them","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":111055,"question":"In which of the following components, pn-junction is used","choices":[{"text":"light emitting diode","value":"A"},{"text":"photo diode","value":"B"},{"text":"photo voltaic cell","value":"C"},{"text":"all of these","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":111054,"question":"The circuit which is used to smooth the output voltage of the full-wave rectification is known as","choices":[{"text":"transformer","value":"A"},{"text":"rectifier","value":"B"},{"text":"filter","value":"C"},{"text":"none of these","value":"D"},{"value":"E"}],"correctAnswer":3}]