Question #238413

Example 2: To move charge q from point a to point b requires -30J. Find the voltage drop vh if: (a) q = 6 C, (b) q - -3 C.

Expert's answer

Work Done = W = Voltage Drop * Charge

W = V * Q

Therefore,

"Voltage Drop V = \\frac{W}{Q}"

Given W = 30 J

Solution [a]

When Q = 6C

"Therefore, Voltage Drop V = \\frac{W}{Q} = \\frac{30}{6} = 5V"

Voltage Drop = 5V

Solution [b]

When Q = -3C

"Therefore, Voltage Drop V = \\frac{W}{Q} = \\frac{30}{-3} = -10 V"

Voltage Drop = -10 V

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