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प्रश्न
Select the correct option:
Current in a circuit flows:
विकल्प
in a direction from high potential to low potential
in a direction from low potential to high potential
in a direction of flow of electron
in any direction
उत्तर
in a direction from high potential to low potential
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संबंधित प्रश्न
Fill in the blank.
A magnet has ............. poles.
A small magnet is suspended by a silk thread from a rigid support such that the magnet can freely swing. How will it rest? Draw a diagram to show it.
State two evidences of the existence of earth's magnetic field.
A charge of 75 C is brought from infinity to a given point in an electric field, when amount of work done is 3.75 J. Calculate the electrical potential at that point.
A work of 25 J and 30 J is done when 5 C charge is moved first to point A and then to point B from infinity. Calculate the potential difference between points A and B.
A charge of 25 C is moved from infinity to points A and B in an electric field when the work is done to do so is 10 J and 10.5 J respectively. Calculate the potential difference between points A and B.
Define the declination.
Consider the statement given below and choose the correct option.
Assertion: The Earth’s magnetic field is due to iron present in its core.
Reason: At a high temperature a magnet loses its magnetic property or magnetism.
Earth acts as a huge bar magnet. Why? Give reasons.
Though Earth is acting as a huge bar magnet it is not attracting other ferromagnetic materials. Why? Give reasons.
