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An infinitely long wire carries a current of three amps. The magnetic field outside the wire:
a) Points radially away from the wire
b) Points radially inward
c) Circles the wire
d) is zero.
Ans:
An infinitely long wire carries current of 3 amps. Outside the wire circles the magnetic field circles the wire.
A woman walks 250m in the direction 35 degrees east of north, then 170m directly east. (a) using graphical method, find her final displacement from the starting point. (b) compare
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For the magnetic circuit shown in Figure find the current I in the coil needed to produce a flux of 0.45mWb in the air gap. The silicon iron magnetic circuit has a uniform cros
Two stable isotopes of lithium and have respective abundances of 7.5% and 92.5%. These isotopes have masses 6.01512 u and 7.01600 u, respectively. Find the atomic mass of lithium.
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Differentiate between teporary and permanent magnet
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