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 Normal to both current and magnetic field In arbitrary direction In the direction of current Antiparallel to magnetic field Normal to both current and magnetic field In arbitrary direction In the direction of current ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Which of the following has highest resistivity? Paraffin wax Mica Air Mineral oil Paraffin wax Mica Air Mineral oil ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Which variety of copper has the best conductivity? Copper containing traces of silicon Induction hardened copper Hard drawn copper Pure annealed copper Copper containing traces of silicon Induction hardened copper Hard drawn copper Pure annealed copper 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. Both A and R are true but R is not a correct explanation of A A is false but R is true Both A and R are true and R is correct explanation of A A is true but R is false Both A and R are true but R is not a correct explanation of A A is false but R is true Both A and R are true and R is correct explanation of A A is true but R is false ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Work function is the maximum energy required by the fastest electron at 0 K to escape from the metal surface. False True False True ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits The most commonly used semiconductor material is Silicon Germanium None of these Mixture of silicon and germanium Silicon Germanium None of these Mixture of silicon and germanium ANSWER DOWNLOAD EXAMIANS APP
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