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Question 4List two methods of producing magnetic fields.
Question 5When is the force experienced by a current–carrying conductor placed in a magnetic field largest?
Question 6Imagine that you are sitting in a chamber with your back to one wall. An electron beam, moving horizontally from back wall towards the...
Question 7State the rule to determine the direction of a(i) magnetic field produced around a straight conductor carrying current,(ii) force...
Question 8When does an electric short circuit occur?
Question 9What is the function of an earth wire? Why is it necessary to earth metallic appliances?
Question 1Consider a circular loop of wire lying in the plane of the table. Let the current pass through the loop clockwise. Apply the right-hand...
Question 3A positively-charged particle (alpha-particle) projected towards the west is deflected towards north by a magnetic field. The direction of...
Question 2An electric oven of 2 kW power rating is operated in a domestic electric circuit (220 V) that has a current rating of 5 A. What result do...