Q.

The quantities x=1μ0∈0,y=EB  and z=lCR are defined where C-capacitance, R-Resistance,  l-length, E-Electric field, B-magnetic field and  ∈0,μ0−free space permittivity and permeability respectively. Then :

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a

Only x and z have the same dimension

b

Only  x and  y have the same dimension

c

Only y  and  z have the same dimension

d

x,y  and z have the same dimension

answer is D.

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Detailed Solution

x=1μ0ε0⇒dimensional formula of x=M0L1T−1​y=EB⇒y=M0L1T−1,​z=LT=L1T−1So all quantities have same dimensional formula of velocity or speed.
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