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प्रश्न
Unscramble the following words:
HTRCO
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उत्तर
TORCH
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संबंधित प्रश्न
Do you think an electromagnet can be used for separating plastic bags from a garbage heap? Explain.
Describe some experiment to show that the magnetic field is associated with an electric current.
What is Maxwell's corkscrew rule? For what purpose is if used?
Which way does the wire in the diagram below tend to move?
Name any two appliances which works on the phenomenon of magnetic effect of electric current.
A uniform magnetic field exists in the plane of paper pointing from left to right as shown in Figure. In the field an electron and a proton move as shown. The electron and the proton experience
In the arrangement shown in Figure there are two coils wound on a non-conducting cylindrical rod. Initially the key is not inserted. Then the key is inserted and later removed. Then
______ are also used to remove splinters of steel or iron in hospitals dealing with eye injuries.
A wire with green insulation is usually the live wire of an electric supply.
As shown in the diagram an aluminium rod 'AB' is suspended horizontally between the two poles of a strong horse shoe magnet in such a way that the axis of rod is horizontal and the direction of the magnetic field is vertically upward. The rod is connected in series with a battery and a key.
State giving reason:
- What is observed when a current is passed through the aluminium rod from end B to end A?
- What change is observed in a situation in which the axis of the rod 'AB' is moved and aligned parallel to the magnetic field and current is passed in the rod in the same direction?
