Respuesta :
If a point has 40 J of energy and the electric potential is 8 V, the charge must be: A. 5 C
Given the following the details;
- Energy = 40 Joules
- Electric potential = 8 Volts
To find the quantity of charge;
Mathematically, the quantity of charge with respect to electric potential is given by the formula;
[tex]Quantity \; of \; charge = \frac{Energy}{Electric \; potential}[/tex]
Substituting the values into the formula, we have;
[tex]Quantity \; of \; charge = \frac{40}{8}[/tex]
Quantity of charge = 5 Coulombs
Therefore, the quantity of charge must be 5 Coulombs.
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- Energy=E=40J
- Potential difference=V=8V
- Charge=Q
[tex]\boxed{\sf E=QV}[/tex]
[tex]\\ \rm\longmapsto Q=\dfrac{E}{V}[/tex]
[tex]\\ \rm\longmapsto Q=\dfrac{40}{8}[/tex]
[tex]\\ \rm\longmapsto Q=5C[/tex]
Hence total charge must be 5C.
Note:-
SI unit of charge is Coulomb (C)