Moving Charges and Magnetism questions
775 published questions with worked solutions.
- If the coil, having cross-section area 0.1 m^2 and carrying a current 2 A is placed in a uniform field of 0.2 T with the normal...
- A 200 turn rectangular coil measuring 0.02 m 0.08 m of an ammeter is in a magnetic field of induction 0.2 tesla. The torsional...
- A rectangular coil of area 5.0 10^ -4 m^2 and 40 turns is pivoted about one of its vertical sides. The coil is in a horizontal...
- A coil of area A and number of turns n, carrying a current i is free to move in uniform magnetic induction B. If is the angle...
- The restoring couple on the coil in the suspended type of galvanometer is offered by :
- The torque acting on the coil is maximum if its plane is :
- The number of turns of M.C.G. is increased by 20% then the deflection for the same current will:
- A rectangular coil of 20 cm 20 cm contains 100 coils through which 1A current is flowing. It is kept in plane of magnetic field...
- In moving coil galvanometer
- Moving coil galvanometer has 60 turns, a width of coil is 2 cm and a length is 3 cm. It hangs in uniform magnetic field of 50 CGS...
- The parallel combination of galvanometer and shunt is called
- An ammeter is a
- An ammeter has a resistance of G and range of I amperes. The value of the resistance used in parallel to convert it into an...
- To convert a moving coil galvanometer into an ammeter, one needs to connect a
- The M.C.G. has resistance G and I_g be the minimum current for full scale deflection. To convert M.C.G. into ammeter of range I,...
- When a galvanometer of resistance G is converted into an ammeter of range I A then the current passing through shunt (s) is
- The range of ammeter can be increased by
- A voltmeter can be converted into ammeter by connecting
- An ammeter of low range can be converted into an ammeter of higher range by connecting
- A galvanometer of resistance 100 gives a full scale deflection for a current of 10^ -5 A. To convert it into an ammeter capable...
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