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Electric current, if very weak, does no...

Electric current, if very weak, does not produce magnetic field.

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False.
Electric currenty produces magnetic field even if the current is very weak.
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It is established that an electric current through a conductor produces a magnetic field arount it . Is there a similar magnetic field produced around a thin beam of moving (i) alpha particles, (ii) neutrons ? Justify your answer in each case .

If the strength of electric current in a circular loop increases, does the magnetic field produced due to the current increase ?

If the strength of electric current in a circular loop increases, does the magnetic field produced due to the current increase?

If the direction of electric current is reversed, then the direction of the magnetic field would also be reversed.

TARGET PUBLICATION-EFFECTS OF ELECTRIC CURRENT -True or False.
  1. The unit of electrical power is watt.

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  2. The electric bulb consists of the filament whose melting point is low.

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  3. Resistivity of pure metals is more than alloys.

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  4. Short circuit occurs, when more appliances work together in a circuit.

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  5. During a short circuit, small amount of current flows through it.

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  6. Electric current, if very weak, does not produce magnetic field.

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  7. Moving charges in a magnetic field would experience a force.

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  8. Most of the power stations produce direct current.

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  9. The working of an electric generator is based on the heating effect of...

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  10. Heat produced in an electric circuit depends upon the potential differ...

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  11. The unit of electrical power is watt.

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  12. The electric bulb consists of the filament whose melting point is low.

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  13. Resistivity of pure metals is more than alloys.

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  14. Metal castings of all electrical appliances must be earthed.

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  15. Short circuit occurs, when more appliances work together in a circuit.

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  16. During a short circuit, small amount of current flows through it.

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  17. Electric current, if very weak, does not produce magnetic field.

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  18. If the direction of electric current is reversed, then the direction o...

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  19. Most of the power stations produce direct current.

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  20. The working of an electric generator is based on the heating effect of...

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    |