Solenoid Question - Magnetism Advanced Physics class?
Solenoid Question - Magnetism Advanced Physics class?
Q.12: An infinite solenoid has radius b and n turns per unit length.
The current varies in time according to I(t) = I0 cosωt (with
positive defined as shown in Fig. Q.12). A ring with radius r < b
and resistance R is centered on the solenoid’s axis, with its plane
perpendicular to the axis.
(a) What is the induced current in the ring?
(b) A given little piece of the ring will feel a magnetic force. For
what values of t is this force maximum?
(c) What is the effect of the force on the ring? That is, does the
force cause the ring to translate, spin, flip over, stretch/shrink,
etc.?
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