Magnetic field lines outside a bar magnet go from
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Answer and explanation
Answer: A. north pole to south pole
Outside the magnet the field lines emerge from N and enter at S.
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Class 10 · Science · Science
12. Magnetic Effects of Electric Current
The device that protects a household circuit from overloading is the
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Answer and explanation
Answer: B. fuse
A fuse melts and breaks the circuit when too much current flows.
Open this question →The direction of the force on a current-carrying conductor in a magnetic field is given by
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Answer and explanation
Answer: A. Fleming's left-hand rule
Fleming's left-hand rule relates field, current and force (used in motors).
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