Physics And Measurement Question 219

Question: The electric field is given by E=Ax3i^+Byj^+Cz2k^ .The SI units of A, B and C are respectively:

[where x, y and z are in m]

Options:

A) Nm3x3,V/m2,N/m2C

B) Vm2,V/m,N/m2C

C) V/m2,V/m,NC/m2

D) V/m,Nm3/C,NC/m

Show Answer

Answer:

Correct Answer: A

Solution:

[a] Unit of Electric field (E)=(N/C)=(V/m)

So, unit of A=E×x3=Nm3C=(Vm2)

Unit of B=E/y=Nmc=(Vm2)

Unit of C=E/z2=Nm2c=(Vm3)



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