b
દળ ક્ષતિ \( = \frac{{\text{1}}}{{{\text{100}}}}\,\,kg.\, = \frac{1}{{100}} \times \frac{1}{{1.67 \times {{10}^{ - 27}}}}u\)

\( = \frac{1}{{100}} \times \frac{{931 \times {{10}^6} \times 1.6 \times {{10}^{ - 19}}}}{{1.67 \times {{10}^{ - 27}}{{10}^{ - 8}}{{10}^{ - 6}}}}Joule\,\,\)

\(\,\, = \frac{{931 \times {{10}^6} \times 1.6 \times {{10}^6}}}{{1.67}}Joule\)

\( = \frac{{931 \times {{10}^9}}}{{3600}}KWH = \frac{{931}}{{36}} \times {10^7}KWH\,\,\, = 2.5 \times {10^7}\,\,KWH\)