ACTIVITY 1
1. Under what
conditions does the charge affect a magnet?
2. The figure below shows two parallel wires. What would be the
effect of passing
a)
Upward current through both
wires.
b)
An upward current through
wire A and a download current through wire B?
3. (a) An electric
current flows in a copper wire from north to south direction. A compass
needle is placed below this wire. What is
your observation and inference?
(b) Sketch the magnetic lines
of force due to a current through a straight conductor.
4. Two straight
parallel placed conductors carrying current in the same direction tends to
contract. Why?
5. On what factor does
the strength of the magnetic field due to a straight conductor carrying current
depend?
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