The work done by the tension T in the above process is

Z e r o

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T (L - L cos θ)

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- T L

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- T L sin θ

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Solution

The correct option is A $Z e r o$
The instantaneous displacement is directed normal to $T$ all the time.
Therefore $W_{T} = 0$ .

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What is the standard potential of the $T l^{3 +} / T l$ electrode?

$T l^{3 +} + 2 e^{-} \to T l^{+} E^{0} = 1.26 V T l^{+} + e^{-} \to T l E^{0} = - 0.336 V$

T l^{3 +} / T l

T l^{3 +} + 2 e^{-} \to T l^{+}; E^{\circ} = 1.26 v o l t

T l^{+} + e^{-} \to T l; E^{\circ} = - 0.336 v o l t

What is the efficiency of a Carnot engine operating between higher temperature $T_{H}$ and lower temperature $T_{L}$ ?

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