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State and explain right hand screw rule. |
Answer» Solution :It STATES that if a right handed screw placed with its axis perpendicular to the plane direction of `veca` to the direction of `vecb` through smaller angel, then the sense of the advancement of the tip of the screw gives the direction of `(VECAXXVECB)or(vecc)`  Screw is rotated in such a WAY that direction of its tip advancement is the direction of `vecc`. If screw is rotated in anti-clockwise direction the direction of `vecc` is negative and if rotated clockwise direction then the direction of `vecc` will be positive. Moreover the direction of `vecc` can be obtained by another way. In figure (b) shows that if we curl the finger of right hand, KEEPING the thumb erect, in such a way that the fingers POINT in the direction of rotation from `veca` to `vecb` through angle `theta`, then the thumb points in the direction of `vecaxxvecb or vecc`. It can be said by another way. Open the right hand palm and fingers be curl from `veca` to `vecb` then erect thumb indicates the direction of `vecc` |
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