Tensioni elektrik - problemet dhe zgjidhjet

1. Përcaktoni potencial elektrik at a point located at 1 cm from a charge 5.0 μC. Konstantja e Kulombit (k) = 9 x 10⁹ Nm²C^-2, 1 μC = 10^-6 C.

I njohur:

The distance from charge (r) = 1 cm = 1/100 m = 0.01 m = 10^-2 m

pagesë (q) = 5.0 μC = 5.0 x 10^-6 C

Coulomb constant (k) = 9 x 10⁹ Nm²C^-2

Kërkohet: Potenciali elektrik (V)

zgjidhje:

Electric potential :

Electric potential is 4.5 10 x⁶ Volt

2. pagesë Q₁ = 5.0 μC dhe ngarkuar Q₂ = 6.0 μC. Coulomb’s constant (k) = 9 x 10⁹ Nm²C^-2, 1 μC = 10^-6 C. Point A located between the charges. Determine electric potential at point A.

I njohur:

pagesë Q₁ = -5.0 μC = -5.0 x 10^-6 C

La distancë of point A from Q₁ = 10 cm = 0.1 m = 10^-1 m

pagesë Q₂ = 6.0 μC = 6.0 x 10^-6 C

The distance of point a from Q₂ = 10 cm = 0.1 m = 10^-1 m

Coulomb’s constant (k) = 9 x 10⁹ Nm²C^-2

Kërkohet: Electric potential at point A

zgjidhje:

Potenciali elektrik 1 :

Potenciali elektrik 2 :

Electric potential at point A :

V = V₂ - V₁

V = (54 – 45) x 10⁴

V = 9 x 10⁴

3. pagesë q₁ = 5.0 μC dhe ngarkuar q₂ = 6.0 μC. Coulomb’s constant (k) = 9 x 10⁹ Nm²C^-2, 1 μC = 10^-6 C. Determine the electric potential at point A.

I njohur:

pagesë Q₁ = -5.0 μC = -5.0 x 10^-6 C

The distance of point A from Q₁ = 40 cm = 0.4 m = 4 x 10^-1 m

pagesë Q₂ = 6.0 μC = 6.0 x 10^-6 C

The distance of point A from Q₂ = 50 cm = 0.5 m = 5 x 10^-1 m

Coulomb’s constant (k) = 9 x 10⁹ Nm²C^-2

Kërkohet: Electric potential at point A

zgjidhje:

Potenciali elektrik 1 :

Potenciali elektrik 2 :

Electric potential at point A :

V = V₁ + V₂

V = (-11.25 + 10.8) x 10⁴

V = -0.45 x 10⁴

V = -4.5 x 10³

Electric potential at point A is -4.5 x 10³ Volt