In the above question, if the balancing length for a cell of \( \operatorname{emf} E \) is \( 60...

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In the above question, if the balancing length for a cell of \( \operatorname{emf} E \) is \( 60 \mathrm{~cm} \), the value of \( E \) will be
(1) \( 3 \mathrm{mV} \)
(2) \( 5 \mathrm{mV} \)
(3) \( 6 \mathrm{mV} \)
(4) \( 2000 \mathrm{mV} \)
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