Tiêu đề Physics - XII - Moving Charges _ Magnetism - Objective Type Questions - Level 2 - Home Work.ppt ✅

MOVING CHARGES & MAGNTISM
OBJECTIVE TYPE QUESTIONS HOMEWORK L-II
Solution 1) 0.2 cm above the wire 2) 2 cm above the wire 3) 0.2 cm below the wire 4) 2 cm below the wire = 2 cm above the wire.
Solution 98. A long vertical wire in which a current is flowing produces a neutral point with the earths magnetic field at a distance of 5cm from the wire. If the horizontal component of the earths magnetic induction is 0.18 gauss, then the current in the wire is 1) 0.45 amp 2) 4.5 amp 3) 0.9 amp 4) 0.036 amp