| http://www.w3.org/ns/prov#value | - In FIG. 27(b), a voltage i.e. 20 volts is applied across the electrodes 902 and 912 causing most of the membrane 902 to lie flat against the insulating layer 914 and look blue or black from the top because electrode 902 forms an anti-reflection coating on the opaque conducting layer 912.
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