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Oak National Academy
12 questions
Which of the following particles are the moving charges in a metal?
Which of the following statements explain what happens if a bare copper wire is folded in half and doubled back on itself?
Which of the following statements explain what we mean when we say two variables are proportional?
Which of the following statements describe the role of the plastic insulation around the copper wires in the cable shown?
The two wires shown are made from the same material. Which of the following resistances is the resistance of the thin wire?
A wire with a cross–sectional area of 1 mm^2 allows a current of 0.2 A to flow through it. What current will flow in a wire of the same material with a cross–sectional area of 4 mm^2?
Which of the following statements describes the cause of resistance in metal wires?
The image shown is a representation of the arrangment of the particles in a metal. Which of the following particles do the black spheres represent?
A metal wire has a resistance of 6 \Omega. Which of the following resistances is the new resistance of the wire if its length is increased by three times?
Which of the following resistances is the total resistance of the combination of resistors shown?
A current of 0.4 A flows through a resistance cable which is 12 m long. What current will flow through 3 m of the same resistance cable?
The cross–sectional area of a wire is doubled and the length is halved. Which of the following statements describes what will happen to the resistance of the wire?
