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How do you locate a current-carrying wir...

How do you locate a current-carrying wire concealed in a wall?

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(i) Current carrying wire - magnetic field .
(ii) Compass needle .
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Force on current carrying wire

Which effect of current can be utilised in detecting a current-carrying wire concealed in a wall ?

Force on a current carrying wire

Force On A Current Carrying Wire

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Magnetic force on a current carrying wire

Question based on Force on current carrying wire

Force on current carrying wire || Self inductance

Vaibhav had gone to his uncle's home in a foreign country where the domestic electric supply is D.C. (Direct Current). An electrician was working in his uncle's kitchen who was trying to find out the location of electric wiring in a particular wall for further electrical work. Failing to do so, the electrician recommended the breaking of substantial portion of the kitchen wall. Vaibhav told his uncle that he could locate the position of current-carrying wires in the kitchen wall without breaking the kitchen wall. In order to do this, Vaibhav purchased a small device from the market and moved it slowly over the whole kitchen wall. After about ten minutes, Vaibhav could locate the position of all the current-carrying wires in this kitchen wall. His uncle was happy that now only a small portion of the kitchen wall will have to be dismantled. (a) What was the small device purchased by Vaibhav ? (b) What was noticed by Vaibhav when this device was moved slowly over the current-carrying wires embedded in the wall ? (c) What name was given to the effect which helped Vaibhav to locate the concealed current-carrying wires in the wall ? Name the scientist who discovered the above effect. (e) What values are shown by Vaibhav in this episode ?

The resistance of a current carrying wire depends on

PEARSON IIT JEE FOUNDATION-ELECTROMAGNETISM-CONCEPT APPLICATION ( LEVEL 2)
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  2. A magnetic needle placed near a current carrying conductor deflects du...

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  3. Can we use Ampere's right hand rule to determine the deflection o...

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  4. A straight conductor carrying current produces a magnetic field around...

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  5. A transformer has 250 primary turns and 500 secondary turns. If 200 V ...

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  6. What happens if earthing is not proper in a telegraph ?

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  7. What causes the rectangular coil in a D.C. motor to rotate? Explain.

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  8. Two, current carrying conductors are placed parallel to each other. E...

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  9. Can a galvanometer as such be used for measuring the current? Explain.

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  10. A straight conductor carrying current produces a magnetic field around...

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  11. The frequency of sinusoidal A.C. voltage is 50 Hz. How many times does...

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  12. In an electromagnetic induction, what is the source of electric energy...

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  13. Two wires, A and B are placed parallel to each other in a vertical pla...

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  14. A spring made of copper is moved towards a stationary bar magnet. What...

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  15. How do you locate a current-carrying wire concealed in a wall?

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  16. Can we a transformer be used to step up or step down a D.C. voltage? E...

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  18. To detect electric current using a galvanoscope, the plane of the coi...

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  19. By increasing the number of turns in the coil, the strength of the mag...

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  20. Why are magnets with concave shaped poles used in a D.C. motor? What...

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