Moving Charges and Magnetism questions
775 published questions with worked solutions.
- A particle moving in a magnetic field increases its velocity, then the radius of the circle
- A proton and an alpha particle enter in a uniform magnetic field with the same velocity. The period of rotation of the alpha...
- In a cyclotron, the applied magnetic field
- Two particles X and Y have equal charges. After being accelerated through the same potential difference, they enter a region of...
- Which one of the following particles cannot be accelerated by a cyclotron?
- A straight wire of length 0.5 m carrying a current of 1.6 ampere is placed in a uniform magnetic field of induction 2 T. If the...
- No force acts on a current carrying conductor in a magnetic field when angle between current and magnetic field is
- A current of 10 ampere is flowing in a wire of length 1.5 m. A force of 15 N acts on it when it is placed in a uniform magnetic...
- A long straight wire carries an electric current of 2 A. The magnetic induction at a perpendicular distance of 5 m from the wire...
- A circular coil of radius 40 mm consists of 250 turns of wire in which the current is 20 mA. The magnetic field in the centre of...
- A winding wire which is used to frame a solenoid can bear a maximum 10 A current. If length of solenoid is 80 cm and its cross...
- A coil of radius 200 mm is to produce a field of 0.4 G in its centre with a current of 0.25 A. How many turns must be there in...
- A solenoid of 1.5 m length and 4 cm diameter possesses 10 turns per m. A current of 5 A is flowing through it. The magnetic...
- The magnetic induction at a point P at distance 4 cm from a long current carrying wire is 10^ -3 T. The field of induction at a...
- A toroidal coil has 3000 turns. The inner and outer radii are 10 cm and 12 cm respectively. If current flowing is 5 A, then the...
- The strength of the magnetic field at a point distant r near a long straight current carrying wire is B. The field at a distance...
- A circular coil of diameter 9 cm has 30 turns of wire which carry current of 1 ampere. The magnetic moment of the coil is
- The coil of a suspended coil galvanometer has a very high resistance when a momentary current is passed through the coil. It
- A rectangular coil has 100 turns each of area 50 cm^2. It is capable of rotation about an axis joining the mid points of two...
- A rectangular coil of a moving coil galvanometer containing 100 turns and 5 cm long and 3 cm broad is suspended in a radial...
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