Physics - Magnetic Effects Of Current

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1. A copper ring is suspended by a thread in a vertical plane. If one end of a magnet is brought horizontally towards the ring as shown, the ring will

(NTSE Panchkula, Chandigarh, Stage-I, 2012-13)

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2. What is meant by one cycle of a.c.? (NTSE Panchkula, Chandigarh, Stage-I, 2012-13)

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3. Match the terms in Column-I with those of Column-II.

Column - I Column - II
a. Electric fuse (i) Chemical effect
b. Relay (ii) Electric discharge
c. CFL (iii) Magnetic effect
d. Button cell (iv) Heating effect

(NTSE Panchkula, Chandigarh, Stage-I, 2012-13)

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4. According to Fleming's left hand rule, the _______ points in the direction of the magnetic field (NTSE Mizoram, Stage-I, 2012-13)

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5. A device which converts the electrical energy into the mechanical energy is called (NTSE Mizoram, Stage-I, 2012-13)

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