Moving Charges and Magnetism questions
775 published questions with worked solutions.
- Statement 1: The sensitivity of a moving a coil galvanometer is increased by using a soft iron cylinder as a core inside the coil...
- The magnetic field at the centre of the M.C.G. is 0.25 T. The coil has an area of 0.2 m^2 and has 28 turns. If the sensitivity of...
- The coil of a galvanometer consists of 100 turns and effective area of 1 square cm. The restoring couple is 10^ -8 N-m/radian....
- A cyclotron is used to accelerate protons, deuterons, -particles, etc. If the energy attained, after acceleration, by the protons...
- A long wire carrying a steady current is bent into a single coil such that magnetic induction at centre is B. then same wire is...
- A micrometer has a resistance of 100 and a full scale range of 50 . It can be used as a voltmeter or as a higher range ammeter,...
- A cyclotron is used to accelerate [K CET 2015]
- A proton of mass m and charge q is accelerated by a potential difference V in a perpendicular magnetic field B occupying space t....
- A small cylindrical soft iron piece is kept in a galvanometer so that [MP PMT 2001]
- In cyclotron, for a given magnet, radius of the semicircle traced by positive ion is directly proportional to (v = velocity of...
- The magnitude of the magnetic field required to accelerate protons (mass =1.67 10^ -27 kg) in a cyclotron that is operated at an...
- The cyclotron frequency of an electron gyrating in a magnetic field of 1 T is approximately
- The maximum velocity to which a proton can be accelerated in a cyclotron of 10 MHz frequency and radius 50 cm is [AMU (Engg.)...
- An alternating electric field, of frequency , is applied across the dees (radius = R) of a cyclotron that is being used to...
- In a cyclotron, the angular frequency of a charged particle is independent of [CPMT 1999, DUMET 2008]
- A circular coil of radius r carries a current I. The magnetic field at its centre is B. At what distance from the centre, on the...
- A helium nucleus makes a full rotation in a circle of radius 0.8 metre in two seconds. The value of the magnetic field B at the...
- A proton of mass m and charge q is moving in a plane with kinetic energy E. If there exists a uniform magnetic field B,...
- A charged particle is moving in a uniform magnetic field in a circular path. Radius of circular path is R. When energy of...
- A proton beam enters a magnetic field of 10^ -4 , Wb ,m^ -2 normally. If the specific charge of proton is 10^ 11 , C ,kg^ -1 and...
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