1.

When one computes the square root of the ratio of the permeability of free space to the permitivity of free space, one obtains sqrt(mu_(0)/epsilon_(0))=337. What is the unit of this quantity?

Answer»

farads
joules
volts
ohms

SOLUTION :Unit of `mu_(0)`= ohm sec/meter
`C^(2) = 1/(mu_(0)epsilon_(0))`
`RARR epsilon_(0) = 1/(C^(2) mu_(0))`
C=velocity of light
`xsqrt(mu_(0)/epsilon_(0)) = SQRT(mu_(0)^(2)C^(2))= mu_(0)C`
Unit of C = metre/sec.
Unit of `sqrt((mu_(0))/epsilon_(0)) =` unit of `mu_(0)C`= ohm sec/meter x meter/sec = Ohm.


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