In circular motion, what are the possible values (zero, positive or negative) of the following:
(a) `omega.v` (b) `v.a`, (c) omega.alpha`

If 1 , omega , omega^(2) are the cube roots of unity , then find the values of the following . [(a + b omega + c omega^(2))/(c + a omega + b omega^(2))] + [(a + b omega +c omega)/( b + c omega + a omega ^(2 ) ] ]

A point charge q is placed at O as shown below. Is V_A-V_B positive, negative or zero, if q is a (i) positive, (ii) negative charge

Assertion: In circular motion, dot product of velocity vector (v) and acceleration vector (a) may be positive, negative or zero. Reason: Dot product of angular velocity vector and linear velocity vector is always zero.

Assertion: In circular motion, dot product of velocity vector (v) and acceleration vector (a) may be positive, negative or zero. Reason: Dot product of angular velocity vector and linear velocity vector is always zero.

A battery has an emf of 12 V and an internal resistance of 2 Omega . Is the terminal-to-terminal potential difference greatest then less than, or equal to 12V if the current in the battery is (a) from the negative to the positive terminal, (b) from the positive to the negative terminal, and (c) zero?

Assertion In circular motion, dot product of v and omega is always zero. Reason omega is always perpendicular to the plane of the circular motion.

Assertion In circular motion, dot product of v and omega is always zero. Reason omega is always perpendicular to the plane of the circular motion.

In a certain region of space the electric potential V is known to be constant. Is the electric field in this region (a) positive (b) zero ,or (c ) negative ?

In a certain region of space the electric potential V is known to be constant. Is the electric field in this region (a) positive (b) zero ,or (c ) negative ?