Dot product is used in the determination of
(a) Work done by a force
(b) Power developed by an automobile moving with uniform velocity.
(c) The normal flux linked with a coil kept in magnetic field.
(d) The force acting on a conductor carrying current kept in a magnetic field

Options

A. a,d are true
B. b,d are true
C. a,b,c are true
D. c,d are true

Answer

C

Explanation

(a) `W=vecF.vecS,` (b) `P=vecF.vecv`
(c) `phi=vecB.vecA,` (b) `vecF=idveclxxvecB`