What is the reason to pivot the compass needle on a sharp pin? |
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(a) |
To minimise the magnetic effect on the pin |
(b) |
To maximize the magnetic effect on the pin |
(c) |
To minimize the friction between the pin and the compass needle |
(d) |
To ensure that the compass needle will not drop from the pivoted point |
What is the reason to pivot the compass needle on a sharp pin? |
|||
(a) |
To minimise the magnetic effect on the pin |
(b) |
To maximize the magnetic effect on the pin |
(c) |
To minimize the friction between the pin and the compass needle |
(d) |
To ensure that the compass needle will not drop from the pivoted point |
To minimize the friction between the pin and the compass needle