» Unlabelled » E.m.f. of a Weston cell is accurately measured by _______.

Sunday, 25 August 2013

E.m.f. of a Weston cell is accurately measured by _______.

(a)     electrostatic voltmeter
(b)     hot wire voltmeter
(c)     isothermal voltmeter
(d)    electrodynamic voltmeter

Ans: a


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