Ajay and his friends went for a walk there they saw metallic chain is attached to a truck carrying some explosive material and touching the ground. It was also written on the truck " Beware highly inflammable". Ajay explain to his friends that during motion of truck, magnetic lines of the earth are cut by its axle and due to this some EMF will be induced across its ends. This induced charge is discharged to the earth through metallic chains and explosive material are safe. Answer the following question:
1. Write the values displayed by Ajay.
2. To.when does an induced EMF produced?
3. Name and state the law which gives Direction of induced curren
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1. Curiosity and attentiveness is shown by Ajay. 2. On changing the value of magnetic flux, an induced e.m.f. produce. 3.Lenz's law. Statement:Direction of induced e.m.f. always opposes the change in magnetic flux.
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