NDA Government Jobs Exams

If an object undergoes a uniform circular motion, then its -
(a) acceleration remains uniform
(b) velocity changes
(c) speed changes
(d) velocity remains uniform

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NDA Other Question

A current-carrying wire is known to produce magnetic lines of force around the conducting straight around
wire. The direction of the lines of force may be described by -
(a) left-had thumb rule for up-current and right-hand thumb rule for down-current
(b) right-hand thumb rule for up-current and left-hand thumb rule for down-current
(c) right-hand thumb rule for both up and down currents
(d) left-hand thumb rule for both up and down currents he had
Q
'no'to him
R
such a wining smile
S
that I chould not say
The correct sequences should be -
(A) Q P R S (B) R P Q S (C) S P Q R (D) P R S Q