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Electromagnets are used in...

Electromagnets are used in

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Explore conceptually related problems

(a) How does an electromagnet differ from a permanent magnet ? (b) Name two devices in which electromagnets are used and two devices where permanent magnets are used.

Name any two devices in which electromagnets are used.

The electromagnetic waves used in the telecommunication are

An electromagnet is not used in the functioning of which of the following devices?

Name the electromagnetic waves used for studying crystal structure of solids. What is its frequency range?

Name the electromagnetic waves used for following and arrange them in increasing order of their penetrating power: (a)water purification (b) remote sensing (c) treatment of cancer.

Electromagnetic waves used as a diagnostic tool in medicine are (A) X-rays (B) ultraviolet rays (C) infrared radiation (D) ultrasonic waves

Do you think an electromagnet can be used for separating plastic bags from a garbage heap? Explain.

PEARSON IIT JEE FOUNDATION-ELECTROMAGNETISM-TEST YOUR CONCEPS ( VERY SHORT ANSWER TYPE QUESTIONS)
  1. Explain Maxwell's right handed corl-screw rule.

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  2. What type of energy transformation takes place in an electric generato...

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  3. Electromagnets are used in

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  4. What is (a) solenoid (b) electromagnet?

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  5. If work done in bringing a bar magnet near the coil radius 10 cm, is 2...

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  6. If the strength of electric current in a circular loop increases, does...

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  7. What are different types of electric power stations?

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  8. If the current in a coil as observed is anticlockwise, then that face ...

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  9. If an electric current flows in a clock-wise direction in a circular l...

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  10. The A.C. which is supplied to our houses has a frequency of.

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  11. What is an electric generator .

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  12. If a straight conductor is held normal to this page and current is flo...

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  13. Electric power stations generatecurrent.

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  14. On increasing the current through a solenoid, the magnetic field produ...

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  15. What is the shape of the magnetic field lines due to a straight curren...

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  16. Two solenoids, 'P' and 'Q' are taken. The coil in solenoid 'P' is woun...

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  17. Define (a) alternating current (b) direct current

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  18. Define Alternating current and Direct current.

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  19. What is the use of (a) galvanoscope (b) telegraph ?

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  20. Detection of small currents can be done by .

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