Consider two circular metal wire loops each carrying the same current I as shown below. In what region(s) could the net magnetic field B be equal to zero? III IV .RS O None of them O 1, III, and v O III only O II and IV Submit Answer Tries 0/1

Help its from physics

Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n

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What is special about a dc circuit ?