Question

The S.I. unit of E is NC^-1 and that of B is NA^-1 m^-1
then the unit of E/B is:
(A) ms? (B) ms
(C) ms (D) mits​

Answer 1

Answer:

Given:

 E=NC^-1 and B=NA^-1m^-1

Required:

E/B=?

Solution:

E/B=NC^-1/NA^-1m^-1 ------>eqn 1

finding value of C^-1:

As eqn for charge is: Q=It so putting units,

coulomb(C)=Ampere(A).second(s)   -------> but we are given per coulomb so the above units will change as:

C^-1=A^-1.s^-1    put in 1

E/B= NA^-1s^-1 /NA^-1m^-1

N,A^-1 cancel eachother

so left are s^-1 / m^-1

rearrange:    ms^-1

Answer 2

Answer:

this is the answer of questions