[{"id":60188,"question":"The field is strong and uniform.","choices":[{"text":"Inside the solenoid","value":"A"},{"text":"Surrounding of solenoid externally","value":"B"},{"text":"Perpendicular to solenoid","value":"C"},{"text":"All of above","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":60187,"question":"μ<sub>∘&nbsp;</sub>(Ampere's constant) has value.&nbsp;","choices":[{"text":"4πx10<sup>-7</sup> WbA<sup>-1</sup>m<sup>-1</sup>","value":"A"},{"text":"4πx10<sup>-17</sup> Wbm<sup>2</sup>","value":"B"},{"text":"4πx10<sup>7</sup> WbA<sup>-1</sup>m<sup>-1</sup>","value":"C"},{"text":"4πx10-27 Wb/m<sup>2</sup>","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":60186,"question":"The unit of Magnetic flux is called.","choices":[{"text":"weber","value":"A"},{"text":"weber/m<sup>2</sup>","value":"B"},{"text":"NM<sup>-1</sup>A<sup>-1</sup>","value":"C"},{"text":"None of above","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":60185,"question":"The conductor experience force, placed in magnetic above:","choices":[{"text":"Move towards weaker part of field","value":"A"},{"text":"Move towards stronger part of field","value":"B"},{"text":"Remains at rest","value":"C"},{"text":"Move upwards in space","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":60184,"question":"1 tesla =","choices":[{"text":"1 MAm<sup>-1</sup>","value":"A"},{"text":"1NA<sup>-1</sup>m","value":"B"},{"text":"1NA<sup>-1</sup>m<sup>-1</sup>","value":"C"},{"text":"None of above","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":60183,"question":"The unit of magnetic induction is:","choices":[{"text":"Tesla&nbsp;","value":"A"},{"text":"Weber","value":"B"},{"text":"Weber metre","value":"C"},{"text":"NAm<sup>-1</sup>","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":2387,"question":"The acceleration of an electron of mass m and charge e, moving with uniform speed v at right angles to a magnetic field of flux density B, is given by","choices":[{"text":"","img":"2387_14-a.jpg","value":"A"},{"text":"","img":"2387_14-b.jpg","value":"B"},{"text":"","img":"2387_14-c.jpg","value":"C"},{"text":"Bevm","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":2385,"question":"To convert a galvanometer into an ammeter, we connect with it a","choices":[{"text":"Shunt resistance","value":"A"},{"text":"Low value parallel","value":"B"},{"text":"Low value by pass resistor","value":"C"},{"text":"All of above","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":2384,"question":"For &nbsp;accurate measurement of current through a circuit, the resistance of ammeter should be","choices":[{"text":"Very small","value":"A"},{"text":"Very high","value":"B"},{"text":"Neither small nor high","value":"C"},{"text":"None of the above","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":2382,"question":"In CRO, the output waveform of time base generator is","choices":[{"text":"Circular","value":"A"},{"text":"Square","value":"B"},{"text":"Sinusoidal","value":"C"},{"text":"Saw-toothed","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":2381,"question":"CRO works by deflecting the beam of electron as they pass through","choices":[{"text":"Uniform magnetic field","value":"A"},{"text":"Uniform electric field between two sets of parallel plates","value":"B"},{"text":"Non-uniform magnetic field","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":2379,"question":"","questionImage":"2379_9-q.jpg","choices":[{"text":"","img":"2379_9-a.jpg","value":"A"},{"text":"","img":"2379_9-b.jpg","value":"B"},{"text":"","img":"2379_9-c.jpg","value":"C"},{"text":"None of the above","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":2374,"question":"Lorentz force means the force acting on a particle, which is","choices":[{"text":"Magnetic force only","value":"A"},{"text":"Electric force only","value":"B"},{"text":"Sum of electric and magnetic force","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":2372,"question":"If an electron is prijected in a magnetic field with velocity V, it will experience a force","choices":[{"text":"","img":"2372_7-a.jpg","value":"A"},{"text":"","img":"2372_7-b.jpg","value":"B"},{"text":"","img":"2372_7-c.jpg","value":"C"},{"text":"","img":"2372_7-d.jpg","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":2371,"question":"The permeability of free space is measured in","choices":[{"text":"wb A/m","value":"A"},{"text":"Am/wb","value":"B"},{"text":"wb/Am","value":"C"},{"text":"m/wbA","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":2370,"question":"The magnetic field is uniform and stronger","choices":[{"text":"Outside the solenoid","value":"A"},{"text":"Inside the solenoid","value":"B"},{"text":"At the central part of the solenoid","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":2369,"question":"The unit of magnetic induction B is","choices":[{"text":"Coulomb","value":"A"},{"text":"Ampere","value":"B"},{"text":"Coulomb/ampere","value":"C"},{"text":"Weber/m<sup>2</sup>","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":2367,"question":"The dimensions of magnetic flux are","choices":[{"text":"M<sup>1</sup>L<sup>-2</sup>T<sup>1</sup>A<sup>1</sup>","value":"A"},{"text":"MLT<sup>-2</sup>A<sup>-1</sup>","value":"B"},{"text":"ML<sup>2</sup>T<sup>2</sup>A<sup>-1</sup>","value":"C"},{"text":"ML<sup>2</sup>T<sup>-2</sup>A<sup>-1</sup>","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":2361,"question":"Weber is the unit of","choices":[{"text":"Magnetic flux","value":"A"},{"text":"Permeability","value":"B"},{"text":"magnetic force","value":"C"},{"text":"None of above","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":2360,"question":"The name of the scientist who noted that a compass needle was deflected when placed near the current carrying conductor","choices":[{"text":"Henry","value":"A"},{"text":"Faraday","value":"B"},{"text":"Coloumb","value":"C"},{"text":"Oersted","value":"D"},{"value":"E"}],"correctAnswer":4}]