AGNETIC EFFECTS Two concentric coils of 10 turns each are situated in the same plane Their radii are 20 cm, 40 cm anN they carry currents 0.2A and 0.3A respectively in opposite direction. The magnetic field (in wh/m)a the centre is b) SO d) a)
AGNETIC EFFECTS Two concentric coils of 10 turns each are situated in the same plane Their radii are 20 cm, 40 cm anN they carry currents 0.2A and 0.3A respectively in opposite direction. The magnetic field (in wh/m)a the centre is b) SO d) a)
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Transcribed Image Text:MAGNETIC EFFECTS OF
Two concentric coils of 10 turns each are situated in the same plane Their radi are 20 cm, 40 cm and
they carry currents 0.2A and 0.3A respectively in opposite direction. The magnetic field (in whin) at
the centre is
a)
SO
d)
84
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