Magnetic Effects Of Current Mock Tests

A current-carrying solenoid has 1000 turns per meter and carries a current of 2 A. The magnetic field inside the solenoid is: (Take μ₀ = 4π × 10⁻⁷ T m/A)

A long straight wire carries a current of 10 A. The magnetic field at a perpendicular distance of 0.1 m from the wire is (μ₀ = 4π × 10⁻⁷ T m/A):

In a domestic electric circuit, the fuse wire is connected in:

When a bar magnet is freely suspended, it aligns in which direction?

A current carrying solenoid has magnetic field B inside. If the number of turns per unit length is doubled, the magnetic field becomes:

When iron filings are sprinkled around a current-carrying solenoid, they arrange themselves in a pattern that shows:

A long straight wire carries a current of 5 A. The magnetic field at a distance of 10 cm from the wire is: (μ₀/4π = 10⁻⁷ T m/A)

A charged particle moves undeflected in a region with simultaneous electric and magnetic fields. The velocity of the particle must be: