Electronic Devices and Circuits Hall effect is observed in a specimen when it is carrying current and is placed in a magnetic field. The resultant electric field inside the specimen is Antiparallel to magnetic field In the direction of current Normal to both current and magnetic field In arbitrary direction Antiparallel to magnetic field In the direction of current Normal to both current and magnetic field In arbitrary direction ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Permalloy is A conon-ferrous alloy used in aircraft industry A variety of stainless steel A polymer A nickel an iron alloy having high permeability A conon-ferrous alloy used in aircraft industry A variety of stainless steel A polymer A nickel an iron alloy having high permeability ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Assertion (A): A JFET can be used as a current source.Reason (R): In beyond pinch off region the current in JFET is nearly constant. A is false but R is true A is true but R is false Both A and R are true but R is not a correct explanation of A Both A and R are true and R is correct explanation of A A is false but R is true A is true but R is false Both A and R are true but R is not a correct explanation of A Both A and R are true and R is correct explanation of A ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits In a bipolar transistor, the base collector junction has Reverse bias Zero bias Zero or forward bias Forward bias Reverse bias Zero bias Zero or forward bias Forward bias ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits In which of these is reverse recovery time nearly zero? Schottky diode Tunnel diode Zener diode PIN diode Schottky diode Tunnel diode Zener diode PIN diode ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits In a half wave rectifier, the load current flows Only for the negative half cycle of the input signal For less than fourth cycle For full cycle Only for the positive half cycle of the input signal Only for the negative half cycle of the input signal For less than fourth cycle For full cycle Only for the positive half cycle of the input signal ANSWER DOWNLOAD EXAMIANS APP
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