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The strength of the magnetic field in a long solenoid having 5000 turns per meter is 3.14x 10^(-2)T . The current flowing through the solenoid is
The magnetic field at a point on the axis of a long solenoid having 5 turns per cm length when a current of 0.8 A flows through it is
The strength of magnetic field inside a long current-carrying straight solenoid is:
A long cylinder of iron having cross sectional area 6 cm^2 . It is kept inside a long solenoid having 4000 turns per metre. Current flowing in the solenoid is 1.5 A. Magnetic field developed inside the core is 3.14 T. Calculate pole strength developed in the core.
A long cylinder of iron having cross sectional area 6 cm^2 . It is kept inside a long solenoid having 4000 turns per metre. Current flowing in the solenoid is 1.5 A. Magnetic field developed inside the core is 3.14 T. Calculate pole strength developed in the core.
The magnetic field on the axis of a long solenoid having n turns per unit length and carrying a current is
The coercivity of a bar magnet is 120A//m . It is to be demagnetised by placing it inside a solenoid of length 120cm and number of turns 72. The current (in A) flowing through the solenoid is:
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