[{"id":227285,"question":"In current carrying long solenoid the magnetic field produced does note depend upon","choices":[{"text":"The radius of solenoid","value":"A"},{"text":"Number of turns per unit length","value":"B"},{"text":"Current flowing through solenoid","value":"C"},{"text":"All of above","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227284,"question":"Force on a charged particle is zero when projected at angle with magnetic field.","choices":[{"text":"0 <sup>o</sup>","value":"A"},{"text":"90<sup>o</sup>","value":"B"},{"text":"180<sup>o</sup>","value":"C"},{"text":"270<sup>o</sup>","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227283,"question":"If current flowing through a solenoid becomes four times, then magnetic field inside becomes.","choices":[{"text":"two times","value":"A"},{"text":"three times","value":"B"},{"text":"four times","value":"C"},{"text":"Half","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":227282,"question":"For a current carrying solenoid the term 'n' has unit as.","choices":[{"text":"No unit","value":"A"},{"text":"m<sup>-1</sup>","value":"B"},{"text":"m<sup>-2</sup>","value":"C"},{"text":"m-3","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":227281,"question":"If the length of solenoid is doubled but N same, B inside the solenoid becomes.","choices":[{"text":"Half","value":"A"},{"text":"Doubled","value":"B"},{"text":"One fourth","value":"C"},{"text":"Four times","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227280,"question":"In current carrying long solenoid the magnetic field produced does not depend upon.","choices":[{"text":"The radius of solenoid","value":"A"},{"text":"Number of turns per unit length","value":"B"},{"text":"Current flowing through solenoid","value":"C"},{"text":"All of the above","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227279,"question":"Magnetic flux density at a point due to current carrying coil is determined by","choices":[{"text":"Ampere's law","value":"A"},{"text":"Faraday's law","value":"B"},{"text":"Lenz's law","value":"C"},{"text":"Gauss's law","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227278,"question":"Energy stored per uint volume inside a solenoid is called as","choices":[{"text":"energy density","value":"A"},{"text":"Electric flux","value":"B"},{"text":"Work","value":"C"},{"text":"Volume charge density","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227277,"question":"If the number of turns become double but length remain same, then magnetic field in the solenoid become.","choices":[{"text":"Half","value":"A"},{"text":"Double","value":"B"},{"text":"Remain same","value":"C"},{"text":"Zero","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":227276,"question":"If the length and number of turns of a solenoid are doubled strength of magnetic field with.","choices":[{"text":"Be doubled","value":"A"},{"text":"Become half","value":"B"},{"text":"Not change","value":"C"},{"text":"Be four time","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":227275,"question":"The SI unit of flux density is.","choices":[{"text":"NA-1 m2","value":"A"},{"text":"NA-1 m-1","value":"B"},{"text":"NAm-1","value":"C"},{"text":"NA-1 m","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":227274,"question":"Magnetic induction can be measured in units of.","choices":[{"text":"Tesla","value":"A"},{"text":"Gauss","value":"B"},{"text":"Weber/m2","value":"C"},{"text":"All of the above","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":227273,"question":"The SI unit of magnetic induction Tesla is equal to","choices":[{"text":"N-1 Am","value":"A"},{"text":"NA m2","value":"B"},{"text":"NA-1n2","value":"C"},{"text":"NA-1m-1","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":227272,"question":"Magnetic flux density is measured in","choices":[{"text":"Weber","value":"A"},{"text":"Weber/m2","value":"B"},{"text":"Tesla -m","value":"C"},{"text":"Gauss","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":227271,"question":"The SI unit of magnetic permeability is.","choices":[{"text":"WbA-1m-1","value":"A"},{"text":"Wbm-2","value":"B"},{"text":"WbmA-1","value":"C"},{"text":"WbAm-1","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227270,"question":"The SI unit of magnetic induction 'B' Tesla is equal to.","choices":[{"text":"NA-1m-1","value":"A"},{"text":"Nam-1","value":"B"},{"text":"NA-1 m","value":"C"},{"text":"Na2m-1","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227269,"question":"A positive charge is moving towards an observer, The direction of magnetic induction will be.","choices":[{"text":"Toward right","value":"A"},{"text":"Anti clockwise","value":"B"},{"text":"Clockwise","value":"C"},{"text":"Toward left","value":"D"},{"value":"E"}],"correctAnswer":2}]