Distinguish difference between electric potential and electric potential energy
Distinguish difference between electric potential and electric potential energy
| Electric Potential $(V)$ | Electric Potential Energy $(U)$ |
| $(1)$ Work done against electric field to bring unit positive charge is electric potential. | $(1)$ Work done against electric field to bring charge ' $q$ ' is electric potential energy |
| $(2)$ Unit : $JC$ $^{-1}$ or Volt. | $(2)$ Unit : $J$ (Joule) |
| $(3)$ $\mathrm{V}=\frac{\mathrm{W}}{q}, q=$ unit positive charge. | $(3)$ $\mathrm{U}=q \mathrm{~V}$ |
| $(4)$ $[\mathrm{V}]=\mathrm{M}^{1} \mathrm{~L}^{2} \mathrm{~T}^{-3} \mathrm{~A}^{-1}$ | $(4)$ $[\mathrm{U}]=\mathrm{M}^{1} \mathrm{~L}^{2} \mathrm{~T}^{-2}$ |
Similar Questions
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$(b)$ How much work is required to separate the two charges infinitely away from each other?
$(c)$ Suppose that the same system of charges is now placed in an external electric field $E=A\left(1 / r^{2}\right) ; A=9 \times 10^{5} \;C m ^{-2} .$ What would the electrostatic energy of the configuration be?
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$(b)$ How much work is required to separate the two charges infinitely away from each other?
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$(a)$ Calculate the potential at a point $P$ due to a charge of $4 \times 10^{-7}\; C$ located $9 \;cm$ away.
$(b)$ Hence obtain the work done in bringing a charge of $2 \times 10^{-9} \;C$ from infinity to the point $P$. Does the answer depend on the path along which the charge is brought?
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$(b)$ Hence obtain the work done in bringing a charge of $2 \times 10^{-9} \;C$ from infinity to the point $P$. Does the answer depend on the path along which the charge is brought?
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