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Determine an expression for the current in the ring
jumping ring demonstration, an electromagnet provides magnetic
field of B=0.2 cos 377t tesla over a circle of radius 1.2cm.
magnetic flux passes thru a copper ring of radius 1.5 cm and cross section 0.5 cm sqrd.
Find an expression for the current in the ring
a. Find the resistance of the copper ring
b. what is the emf induced in the ring
c. find an expression for the current in the ring
note : copper conductivity 5.8 X 10^7 S/m
The power factor of an a.c. circuit is 0.5. What will be the phase difference among voltage and current in this circuit?
Fig.of conical prism
define
This depends on the arrangement of a beam or column. for a simply supported beam with a point load in the centre of the beam Mmax = WL/4 and will occur at centre span W is the lo
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