Measure the length of the arrow in centimeters using correct significant figures.
l = 3 cm
l = 3.3 cm
l = 3.35 cm
l = 3.351 cm

The significant figures is 3.3 cm.

Explanation:

Significant :

Significant figures of a number are numbers that have significance to contribute to its resolution of measurements.

Centimeter is unit of length.

According to figure,

The significant figures is

Hence, The significant figures is 3.3 cm.

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.

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