Problem #9: A conducting rectangular loop of a width b = 0.2 m and a height h = 0.3 m is situated in the neighborhood of a very long power line carrying a 50 Hz current, as shown in Figure, withd = 0.15 m. An AC milliammeter inserted in the loop reads 0.3 mA. Assume the total impedance of the loop including the milliammeter to be 0.01 ohm. a) Find the magnitude of the current in the power line. b) To what angle about the horizontal axis should the circular loop be rotated in order to reduce the milliammeter reading to 0.2 mA? i(t) d.
Problem #9: A conducting rectangular loop of a width b = 0.2 m and a height h = 0.3 m is situated in the neighborhood of a very long power line carrying a 50 Hz current, as shown in Figure, withd = 0.15 m. An AC milliammeter inserted in the loop reads 0.3 mA. Assume the total impedance of the loop including the milliammeter to be 0.01 ohm. a) Find the magnitude of the current in the power line. b) To what angle about the horizontal axis should the circular loop be rotated in order to reduce the milliammeter reading to 0.2 mA? i(t) d.
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Transcribed Image Text:Problem #9:
A conducting rectangular loop of a width b = 0.2 m and a height h = 0.3 m is situated in the
neighborhood of a very long power line carrying a 50 Hz current, as shown in Figure, with d = 0.15 m.
An AC milliammeter inserted in the loop reads 0.3 mA. Assume the total impedance of the loop
including the milliammeter to be 0.01 ohm.
a) Find the magnitude of the current in the power line.
b) To what angle about the horizontal axis should the circular loop be rotated in order to reduce the
milliammeter reading to 0.2 mA?
b
i(t)
d
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