A loop PQR carries a current i = 2 A as shown in the figure. A uniform magnetic field B = 2T exists in space parallel to the plane of the loop. The magnetic torque on the loop is
Area = 1/2 × base × height = 2 m2
τ = iAB sinθ (sin 90 =1 )
= 2×2×2×1 = 8 Nm
A particle of charge -16 × 10-18 C moving with velocity 10 ms-1 along the x−axis
NextA coil of 40 turns and area 4 cm2 is suddenly removed from a magnetic field, it
Magnetic flux (in weber) in a closed circuit of resistance 20 Ω varies with time t(s) as φ = 8t² − 9
HardAn infinite current carrying wire is bent as shown in Figure Then magnetic field at O, is
EasyTwo concentric coplanar circular loops of radii a and b carry currents x and y respectively in oppos
EasyA coil of 40 turns and area 4 cm2 is suddenly removed from a magnetic field, it is observed that a c
EasyA particle of charge -16 × 10-18 C moving with velocity 10 ms-1 along the x−axis enters in a region
HardA particle of mass m and charge q has velocity if an electric field and magnetic field act on the pa
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