Question

Can someone tell me the answer for these questions? ​

Answer 1

Answer:

iii) d

iv) a

v) a or c

Explanation:

iii) Earth wire is a safety measure to prevent electric shocks. In case a live wire accidentally comes into contact to the metallic body of an electrical appliance, the current flows through the Earth wire into the ground, preventing a shock if someone touches the body of appliance.

iv) Using Flemings left hand rule, you can tell the direction of force on a current-carrying conductor in a magnetic field.

v) The magnet moves away from the coil, resulting in decreasing flux through the coil. According to Lenz law, a current is induced such that it opposes the casue of flux change.