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1. Consider a solenoid, such as the slinky used in part B of the experiment. What...

1. Consider a solenoid, such as the slinky used in part B of the experiment. What would happen to the magnetic field inside this solenoid if you doubled the number of turns while simultaneously stretching the solenoid to twice the original length? Assume the voltage applied was kept constant and the additional length of wire for the extra turns of the coil do not add appreciably to the resistance of the solenoid. Which would be the result?

a) The magnetic field would grow stronger

b) The magnetic field would get weaker

c) The magnetic field would stay the same

d) Need more information to answer the question.


2.  Consider the magnetic field of an ideal magnetic dipole which has a magnetic moment µ = 10. Calculate the distance from the magnetic source where the magnetic field falls to 4.2 x 10-7

3. What would happen to the magnetic field inside a solenoid if you doubled the voltage applied to it?

a) The field would decrease by half

(b The field would stay the same

(c The field would double

d) The field would quadruple.

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