EASY
KVPY Aptitude Test - Stream SX
IMPORTANT
Earn 100
The magnetic flux density at a point distant from a long straight current-carrying conductor is , then its value at distance will be,
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Important Questions on Magnetic Effect of Current and Magnetic Force on Charge or Current
MEDIUM
KVPY Aptitude Test - Stream SX
IMPORTANT
A current-carrying wire is bent in the shapes as shown in the figure. The length of both arms extends to infinity. Then, the magnetic field at is,
MEDIUM
KVPY Aptitude Test - Stream SX
IMPORTANT
The magnetic induction at centre in the following figure will be,
EASY
KVPY Aptitude Test - Stream SX
IMPORTANT
The use of Helmholtz coils is to produce,
EASY
KVPY Aptitude Test - Stream SX
IMPORTANT
A current is flowing in a straight conductor of length . The magnetic induction at a point distant from its centre will be,
EASY
KVPY Aptitude Test - Stream SX
IMPORTANT
The magnetic field inside a solenoid is,
EASY
KVPY Aptitude Test - Stream SX
IMPORTANT
When the number of turns in a toroidal coil is doubled, then the value of magnetic flux density will become,
EASY
KVPY Aptitude Test - Stream SX
IMPORTANT
A long solenoid carrying a current produces a magnetic field along its axis. If the current is doubled and the number of turns per is halved, the new value of the magnetic field is,
MEDIUM
KVPY Aptitude Test - Stream SX
IMPORTANT
The correct curve between the magnetic induction along the axis of a long solenoid due to current flow in it and at a distance from one end is,
