A steady current produces:
Correct answer: A. Magnetic field
- A. Magnetic field
- B. Both
- C. None of these
- D. Electric field
Explanation
A steady current in a wire constitutes a concentric magnetic field perpendicular to the direction of the current in the said wire. The direction of the field can be found out using the right-hand grip rule.
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About Current Electricity
Steady current relates charge flow to potential difference, resistance and resistivity, including how temperature changes a conductor's resistance. Sources with internal resistance have terminal voltage below their emf when delivering current, and maximum power output occurs under a specific load condition rather than at zero resistance.
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