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13. Magnetic Effects of Electric Current
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Q27 of 72 Page 13

Draw a labelled diagram to show the domestic electric wiring from an electric pole to a room. Give the wiring for a bulb and a three-pin socket only.

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24

What is the difference between direct current generator and alternating current generator?

25

Draw a labelled diagram of an electric motor. Explain its principle and working. What is the function of a split ring in an electric motor?

26 Explain the underlying pricipal and working of an electric generator by drawing a labelled diagram.What is the function of brushes. 28

A coil is connected to a galvanometer. When the N-pole of a magnet is pushed into the coil, the galvanometer deflected to the right. What deflection, if any, is observed when:

(a) the N-pole is removed?


(b) the s-pole is inserted?


(c) the magnet is at rest in the coil?


State three ways of increasing the deflection on the galvanometer.

Questions · 72
13. Magnetic Effects of Electric Current
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