Tell any two uses of button cell.

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Solution

Dear student,
uses of button cell are-

To power small portable electronic devices like wrist watch.

In pocket calculators, hearing aids etc

Regards

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In the button cell widely used in watches and other devices the following reaction takes place :

$Z n (s) + A g_{2} O (s) + H_{2} O (l) \to Z n^{2 +} (a q) + 2 A g (s) + 2 O H^{-} (a q) D e t e r m i n e Δ_{r} G^{\circ} a n d E^{\circ} f o r t h e r e a c t i o n . [G i v e n, E_{\frac{Z n}{Z n^{2 +}}}^{\circ} = - 0.76 V a n d E_{\frac{A g^{+}}{A g}}^{\circ} + 0.34 V]$

Name any two elements that are used for fabricating solar cell

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Tell any two uses of button cell.

Dear student, uses of button cell are- To power small portable electronic devices like wrist watch. In pocket calculators, hearing aids etc Regards

Dear student,
uses of button cell are-

To power small portable electronic devices like wrist watch.

In pocket calculators, hearing aids etc

Regards