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2 years ago

Please help!

Physics

1 answer:

Dovator [93]2 years ago

6 0

Work=W=5.0×10^-7J
Charge=8.0nC=Q
Vf=24V

We need potential difference V first

$\\ \sf\longmapsto V=\dfrac{W}{Q}$

$\\ \sf\longmapsto V=\dfrac{5\times 10^{-7}J}{8\times 10^{-9}C}$

$\\ \sf\longmapsto V=0.625\times 10^2V$

$\\ \sf\longmapsto V=62.5V$

Now

$\\ \sf\longmapsto V=V_f-V_i$

$\\ \sf\longmapsto V_i=V-V_f$

$\\ \sf\longmapsto V_i=62.5-24=38.5V$

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