A conducting equilateral triangular loop is placed near a very long straight wire, shown i...

A conducting equilateral triangular loop is placed near a very long straight wire, shown in Fig., with d = b/2. A current i(t) = I sin wt flows in the straight wire.

a) Determine the voltage registered by a high-impedance rms voltmeter inserted in the loop.

b) Determine the voltmeter reading when the triangular loop is rotated by 60° about a perpendicular axis through its center.

FIGURE :A long, straight wire and a conducting equilateral triangular loop.