Q1 of 32 Page 98

Choose the incorrect statement from the following regarding magnetic lines of field

This statement is false about the magnetic field lines that if magnetic field lines are parallel and equidistant then they represent zero field strength because if they are parallel and are at equal distance then they have uniform magnetic field and doesn’t have zero magnetic field strength.

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2

If the key in the arrangement (Figure 13.1) is taken out (the circuit is made open) and magnetic field lines are drawn over the horizontal plane ABCD, the lines are

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A circular loop placed in a plane perpendicular to the plane of paper carries a current when the key is ON. The current as seen from points A and B (in the plane of paper and on the axis of the coil) is anti clockwise and clockwise respectively. The magnetic field lines point from B to A. The N-pole of the resultant magnet is on the face close to

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For a current in a long straight solenoid N- and S-poles are created at the two ends. Among the following statements, the incorrect statement is

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A uniform magnetic field exists in the plane of paper pointing from left to right as shown in Figure 13.3. In the field, an electron and a proton move as shown. The electron and the proton experience