NCERT Exemplar III — task. Science CBSE, Class 10.

PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

Book Free Demo

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

forces both pointing into the plane of paper
forces both pointing out of the plane of paper
forces pointing into the plane of paper and out of the plane of paper, respectively
force pointing opposite and along the direction of the uniform magnetic field respectively

2. Commercial electric motors do not use

a soft iron core on which the coil is wound
an electromagnet to rotate the armature
a permanent magnet to rotate the armature
effectively large number of turns of conducting wire in the current carrying coil

Previous exercise

Exit to the topic

Next exercise

Send feedback

Did you find an error?

Send it to us!

39. NCERT Exemplar III

Exercise condition: