Question

Potential gradient of a wire is 0.02V/cm when it is connected across a cell of (1)

emf 2V. What is its potential gradient when the same wire is connected to a cell of

emf 1V? ​

Answer 1

$\huge \tt \blue{answer : }$

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The direction of magnetic field at the centre

of the circular loop depends on whether the

current in the loop flows in clockwise or

anticlockwise direction.When the current is in

clockwise direction, the magnetic field goes

into the side of wall.

when current is in clockwise direction the

direction of magnetic field (B) is towards

the circuit on the other hand when current

is in anticlockwise direction the direction of

magnetic field (B) is outwards the circuit.

Answer 2

Explanation:

Potential energy, stored energy that depends upon the relative position of various parts of a system. A spring has more potential energy when it is compressed or stretched. A steel ball has more potential energy raised above the ground than it has after falling to Earth.