Please Solve.. Part A: A 302-turn solenoid with a length of 31 cm and radius of

Question

Please Solve..

Part A:
A 302-turn solenoid with a length of 31 cm
and radius of 0.8 cm carries a current of 2.7 A.
A second coil of 4 turns is wrapped tightly
about this solenoid so that it can be consid-
ered to have the same radius as the solenoid.
Find the change in the magnetic flux
through the coil when the current in the
solenoid increases to 6.2 A in a period of
1.44 s. The permeability of a vacuum is
4? 10?7 T m/A
Answer in units of T m2

Part B:
Find the magnitude of the average induced emf in the coil.
Answer in units of ?V

Explanation / Answer

= 4pi(8 x 10^-3)^2 x 4piE-7 (302/0.31)(6.2 - 2.7)/1.44

= 2.393 x 10^-6 V

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