Mathematics · Moving Charges and Magnetism
A current-carrying rectangular loop PQRS is made of uniform wire. The length PR = QS = 5 cm and PQ = RS = 100 cm. If the current changes from I to 2I, the ratio of the magnetic forces per unit length on the wire PQ due to wire RS in the two cases respectively (fPQI : fPQ2I) is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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1:4
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