2 points A spring wire 3 m long and 1.7 mm in diameter, when stretched by weight of 500 grams shown in figure 6. The coefficient of linear expansion of the wire is 12 x 10-6 N/m2. If the mass is doubled and the change in temperature is xxc, Calculate the fractional change in length of the spring wire.​

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 !