A Circular Loop of Wire Has Its Radius Reduced in Half

question 12

Multiple Choice

A circular loop of wire has its radius reduced in half in time Ät.A uniform magnetic field is at an angle of 60^° to the plane of the coil,and the magnetic field doubles its intensity in the same time interval Ät.During this interval,what happens to the flux through the coil?

• A) It increases.
• B) It decreases.
• C) It remains the same.
• D) More information is needed to make this conclusion.

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