Moving Charges and Magnetism questions
775 published questions with worked solutions.
- When a galvanometer is shunted by a resistance 'S' its current capacity increases 'n' times. If the same galvanometer is shunted...
- The magnetic induction produced inside an ideal solenoid, depends on which of the following quantities ? (a) number of turns per...
- A current carrying circular coil of radius 'R' produces magnetic field B_1 at an axial point P at a distance 'x' from its centre...
- Two circular coils X (smaller) and Y (bigger), each having a single turn, carry equal currents in the same direction and subtend...
- An element = x , i is placed at the origin and carries a current of 10A. The magnitude of magnetic field on the Y axis at a...
- A long wire carrying a steady current is bent into a circle of single turn. The magnetic field at the centre of the coil is 'B'....
- A solenoid of 1000 turns is wound uniformly on a glass tube 4 m long and 0.3 m in diameter. The magnetic intensity at the centre...
- A circular arc of wire of radius of curvature 'r' subtends an angle of 5 radian at its centre. If current 'i' is flowing in it...
- A thin circular wire carrying current 'I' has magnetic moment 'M'. The shape of the wire is changed to a square and it carries...
- An electron is moving with initial velocity v = V_0 j in a magnetic field B = B_0 i. Its de-Broglie wavelength will
- A long solenoid carrying a current produces a magnetic field 'B' along its axis. If the currunt is tripled and the number of...
- A coil having 9 turns carrying current produces magnetic field B1 at the centre. Now that coil is rewounded into 3 turns carrying...
- An electron moves in Bohr orbit. The magnetic field at the centre is proportional to
- If an ammeter is to be used in place of a galvanometer then we must connect
- A particle of charge q moves with a velocity V =a i in a magnetic field B =b j +c k , where 'a', 'b' and 'c' are constants. The...
- Two similar wires of equal lengths are bent in the form of a square and a circular loop. They are suspended in a uniform magnetic...
- A wire of length L carries current I along x-axis. A magnetic field B =B_0( i - j - k )T acts on the wire. The magnitude of...
- A circular coil of wire consisting of 'n' turns each of radius 8 cm carries a current of 0.4 A. The magnitude of the magnetic...
- The relation between magnetic moment (M) of a current carrying circular coil and length (L) of the wire used is
- In hydrogen atom, an electron of charge 'e' revolves in an orbit of radius 'r' with speed 'v'. The magnetic moment associated...
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