When an iron nail has a coil of wire placed around it that has a current flowing through it from a battery, it causes a magnetic field.
A chemical
B nuclear
C mechanical
D light

The answer is trial 3.

Answer body lying face up ;

Iwould have to say sorry i can't elaborate more. hope this though!

Answer: 1.4 seconds which is the third optionexplanation: current is defined as the flow of charge per timetherefore, the equation that relates current, charge and time can be expressed as follows: i = δq / δtwhere: i is the current given = 1.8 ampereδq is the charge given = 2.5 coulombδt is the time required for the flow of the given charges to give the 1.8 ampere.substitute with the givens in the above equation to get the time as follows: 1.8 = 2.5 / δtδt = 2.5 / 1.8 = 1.38888 which is approximately 1.4 secondshope this was !