A Circular Loop of Wire Has Its Radius Reduced in Half

question 49

Multiple Choice

A circular loop of wire has its radius reduced in half in time Δt.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 Δt.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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