Physics
Grade-10
Easy
Question
Which one of the following appliances has a rotating part?
- Toaster
- Geyser
- Washing machine
- Electric Iron
Hint:
Washing machine
The correct answer is: Washing machine
In a washing machine the inner tub is called a wash basket in top load washers and a drum in front load washers. The outer tub remains stationary and holds the wash basket or drum, catching the wash water so it can be drained out. The wash basket or drum is the part of the washer that holds the clothes and rotates to wash them.
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The Brushes of an Electric motor are made of a ____.
The Brushes of an Electric motor are made of a ____.
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The direction of rotation of a coil in an electric motor is determined by the _____.
The direction of rotation of a coil in an electric motor is determined by the _____.
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Which parts of an electric motor reverse the direction of current in the coil?
Which parts of an electric motor reverse the direction of current in the coil?
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The rectangular coil of an Electric motor is called the ___.
The rectangular coil of an Electric motor is called the ___.
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Commercial electric motors do not use:
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An electric motor is based on the phenomenon of:
An electric motor is based on the phenomenon of:
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Which one of the following appliances has no rotating part?
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An electric motor is not a part of which one of the following electrical appliances:
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The direction of current in the coil at one end of an electromagnet is clockwise. This end of the electromagnet will be:
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In the given figures, there are four electromagnets. Which among them is the strongest?
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A tiny rod is wrapped in conducting coils and allowed to conduct current for a period of time. When the rod was removed, it was discovered that it did not attract iron, the material of the rod may be:
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Which type of magnetic field lines are formed near the current-carrying circular coil?
Which type of magnetic field lines are formed near the current-carrying circular coil?
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Which of the following actions will decrease the strength of the magnetic field of an electromagnet?
Which of the following actions will decrease the strength of the magnetic field of an electromagnet?
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(i) Electromagnets can be made more powerful than ordinary bar magnets.
(ii) Soft iron core is used in electromagnets
(iii) The poles of an electromagnet are not affected by the direction of the current.
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Study the statements given below:
(i) Electromagnets can be made more powerful than ordinary bar magnets.
(ii) Soft iron core is used in electromagnets
(iii) The poles of an electromagnet are not affected by the direction of the current.
Which of the above statements about the electromagnets is/are correct?
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The strength of the magnetic field due to a solenoid can be increased by:
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