If the flow of electric current is parallel to the magnetic field, the force will be?(a) Zero(b) Infinity(c) Maximum(d) Half the original valueI had been asked this question by my school principal while I was bunking the class.Asked question is from Force on a Current Carrying Conductor topic in section Electromagnetism of Basic Electrical Engineering

If the flow of electric current is parallel to the magnetic field, the

1.	If the flow of electric current is parallel to the magnetic field, the force will be?(a) Zero(b) Infinity(c) Maximum(d) Half the original valueI had been asked this question by my school principal while I was bunking the class.Asked question is from Force on a Current Carrying Conductor topic in section Electromagnetism of Basic Electrical Engineering
Answer» RIGHT answer is (a) Zero To elaborate: Force is a cross product. A cross product involves the SINE of the angle between them. If TWO quantities are parallel to each other, the angle between them is zero. Sin(0) is zero, HENCE force is zero.

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