Moving Charges and Magnetism questions
775 published questions with worked solutions.
- A coil in the shape of an equilateral triangle of side l is suspended between the pole pieces of a permanent magnet such that is...
- An electron moves in a circular orbit with a uniform speed v. It produces a magnetic field B at the centre of the circle. The...
- Two ions of masses 4 amu and 16 amu have charges +2e and +3e respectively. These ions pass through the region of constant...
- For full scale deflection of total 50 divisions, 50 mV voltage is required in galvanometer. The resistance of galvanometer if its...
- A coaxial cable consists of an inner wire of radius 'a' surrounded by an outer shell of inner and outer radii 'b' and 'c'...
- A coil having N turns is wound tightly in the form of a spiral with inner and outer radii 'a' and 'b' respectively. Find the...
- Consider a galvanometer shunted with 5 resistance and 2% of current passes through it. What is the resistance of the given...
- A proton, a deuteron and an particle are moving with same momentum in a uniform magnetic field. The ratio of magnetic forces...
- Magnetic fields at two points on the axis of a circular coil at a distance of 0.05 m and 0.2 m from the centre are in the ratio 8...
- A light beam of wavelength 500 nm is incident on a metal having work function of 1.25 eV, placed in a magnetic field of intensity...
- A light beam is described by E=800 (t- x c ). An electron is allowed to move normal to the propagation of light beam with a speed...
- If the maximum value of accelerating potential provided by a ratio frequency oscillator is 12 kV. The number of revolution made...
- A coil in the shape of an equilateral triangle of side 10 cm lies in a vertical plane between the pole pieces of permanent magnet...
- The fractional change in the magnetic field intensity at a distance 'r' from centre on the axis of current carrying coil of...
- Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): In an...
- The magnetic field at the centre of a circular coil of radius r, due to current I flowing through it, is B. The magnetic field at...
- A proton, a deuteron and an -particle with same kinetic energy enter into a uniform magnetic field at right angle to magnetic...
- The electric current in a circular coil of 2 turns produces a magnetic induction B_ 1 at its centre. The coil is unwound and is...
- An electron with energy 0.1 keV moves at right angle to the earth's magnetic field of 1 10^ -4 Wbm^ -2 . The frequency of...
- A long solenoid carrying a current produces a magnetic field B along its axis. If the current is doubled and the number of turns...
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