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Physics MCQ - Magnetic Effects Of Current

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)

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

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)

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

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

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Question:

On which of the following does not exert any force when kept in uniform magnetic field? (NTSE Chhattisgarh, Stage-I, 2015-16)

A. Moving magnet
B. Moving charge
C. Stationary magnet
D. Stationary charge

Correct answer: D

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