Question

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Answer 1

Explanation:

its preventing rusting of iron

Answer 2

Answer:

(a) When a straight conductor carrying current of I enters a magnetic field B , then a force or torque experienced to the conductor .

(b) here we use the Fleming's Left hand rule to find the direction of the force. here the force is towards the magnet or towards the left as shown in figure.

(c) This principle used in electric motors for rotate the axil .

(v) Preventing from corrosion of metals:

• by paint on the surface
• by galvanisation
• to make alloy like stainless steel ( iron + carbon )

                                  hope it helps mate

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