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MODERN PUBLICATION-MAGNETIC EFFECTS OF ELECTRIC CURRENT-EXERCISE
- What is the function of earth wire? Why is it necessary to earth metal...
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- Write the S.I. unit of magnetic field vecB.
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- With the help of which rule can you find the direction o magneitc fiel...
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- An electric motor converts one form of energy to another .Name these f...
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- What is the principle of an electric motor?
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- What is a compass needle?
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- what happens to the strength of magnetic field if currnt flowing in th...
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- Whenever there is a relative motion between a coil and a magnet ,and i...
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- The device used for producing electric current is called,
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- Switch is connected to which wire-live neutral or earth?
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- What is the colour of neutral wire in a domestic electric circuit?
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- In an electric circuit... is always connected in parallel
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- Which of the two circuits 5 ampere or 15 ampere requires a thin fuse w...
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- Does current prefers to move in a high or low resistence path?
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- What is the composition of the alloy of which the electric fuse is mad...
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- What is the frequency of household supply of a.c. in India?
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- Lodestone(Fe3O4) has enormous application because it is a strong magne...
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- Unlike poles repel each other. Is this statement true.
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- The magnetic field lines
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- Magnetic field lines are discontinuous curves. Is this statement true.
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- Why two magnetic lines of forces never intersect each other?
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