5:27 PM Thu 28 Apr < 5 Question 3 a) Outline how the resistance of a conducting wire is affected by its physical geometr

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5 27 Pm Thu 28 Apr 5 Question 3 A Outline How The Resistance Of A Conducting Wire Is Affected By Its Physical Geometr 1 (26.56 KiB) Viewed 41 times

5:27 PM Thu 28 Apr < 5 Question 3 a) Outline how the resistance of a conducting wire is affected by its physical geometry (shape) (4 marks) b) A resistance of 1500 Ohm is typical between your two hands when they are dry. How much current flows through the body if you accidentally grabbed a wire containing 120 V of alternating current? (3 marks) from the current calculated in bl, how many electrons pass by a point in the body in 1 second? (4 marks) d) If the skin was wet, would more or less current flow through the body? Explain your answer. (4 marks) Question 4 a) Explain what is meant by the term magnetism (3 marks) b) A metal wire has 300 circular turns each with a radius of 0.11 m. This collis placed perpendicular to a uniform magnetic field of 4 T. What is the EMF induced in the col if this changes to 15 Tin 0.667 (6 marks) c) A metal coil (black) and a plastic coil (white) with identical dimensions were arranged as shown in the diagram below. Why does it take longer for the magnet to fall through the metal coil than the plastic coil? (6 marks) 22% +: 0