Assertion: If the rectangular components of a force are 24N and 7N, then the magnitude of the force is 25N.
Reason : If `|vecA|=|vecN|=1` then `|vecAxxvecN|^(2)+|vecA.vecN|^(2)=1`

Options

A. Pressure, Young's modulus, Stress
B. Emf, Potential difference, Electric Potential
C. Heat, Work done, Energy
D. Dipole moment, Electric flux, Electric field

Answer

D

Explanation

(i) Dipole moment= Change `xx` Length
Dipole moment`=[I^(1)T^(1)][L^(1)]=[L^(1)I^(1)T^(1)]`
(ii) Electric flux `=q/in_(0)=([I^(1)T^(1)])/([M^(-1)L^(3)T^(4)I^(2)])=[M^(1)L^(3)T^(-3)I^(-1)]`
(iii) Electric field `=F/q`
Electric field`=([M^(1)L^(1)T^(-2)])/([I^(1)T^(1)])=[M^(1)L^(1)T^(-3)I^(-1)]`