A 2 amp current is flowing through two differentsmall circul... — Physics | Mockzy

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A 2 amp current is flowing through two different

small circular copper coils having radii ratio 1:2.

The ratio of their respective magnetic moments will

1:4

1:2

2:1

4:1

AB is a part of an electrical circuit (see figure). Thepotential difference “VA

In a certain camera, a combination of four similar thin convex lenses are arrang

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