Moving Charges and Magnetism questions
775 published questions with worked solutions.
- The deflection of a galvanometer falls from 50 div to 20 div, when a 12 shunt is connected across it. The galvanometer resistance...
- A galvanometer has a current range of 15 mA and a voltage range of 750 mV. To convert this galvanometer into an ammeter of range...
- A galvanometer with a scale divided into 150 equal divisions has a current sensitivity of 10 div/mA and voltage sensitivity of 2...
- A current I = 1.00 A circulates in a round thin wire loop of radius r = 100 mm. Find the magnetic induction at the centre of the...
- A 20 MeV proton is moving perpendicular to a uniform magnetic field of 2.5 T. The force on the proton is
- Direction of force acting on a current carrying conductor L in an external magnetic field B is
- "On passing current in a conducting wire, the magnetic field is produced around it." It is a law of
- Magnetic induction due to a toroid does not depend upon
- A long solenoid of length L has a mean diameter D. It has n layers of windings of N turns each. If it carries a current 'I', the...
- Ampere's law is analogous to
- Toroid is a solenoid of
- The coil of a sensitive M.C.G. swings too far on both sides. This movement can be quickly stopped by?
- In a moving coil galvanometer, a radial magnetic field is produced due to the
- To make the field radial in a moving coil galvanometer,
- To convert a moving coil galvanometer into an ammeter, one needs to connect a
- The range of an ammeter of resistance G, is increased from I to nI. This can be done by connecting
- The range of voltmeter can be increased by
- A voltmeter of resistance G ohm has range V volt. To increase its range upto (nV), one must connect
- The sensitivity of a M.C.G. will increase if
- An electron and a proton have equal kinetic energies. They enter a magnetic field perpendicularly, then
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