Three wires of lengths 7m, 8m and 9m are made up of the same material and have the same area of cross section, which wire has the highest resistance? a. 9m long wire b. All three wires have the same resistance c. 7m long wire d. 8m long wire 7. A ball is dropped from a height of 6m above the ground. The velocity of the ball when reaching the ground is a 7.66 m/s b. -10.84 m/s c. 10.84 m/s d. -98 m/s

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Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.