contestada

Two point charges, A and B, are separated by a distance of 19.0 cm . The magnitude of the charge on A is twice that of the charge on B. If each charge exerts a force of magnitude 46.0 N on the other, find the magnitudes of the charges

Respuesta :

Answer:

The charge on point A is [tex]q_a[/tex] = 2.4 × [tex]10^{-5}[/tex] C

The charge on point B is [tex]q_b[/tex] = 1.2 × [tex]10^{-5}[/tex] C

Explanation:

Given data

Distance (r) = 0.19 m

Magnitude of the charge on A is twice that of the charge on B  i.e.

[tex]q_A = 2 q_B[/tex]

F = 46 N

We know that force between the charges is given by

[tex]F = \frac{k Q_A Q_B}{r^{2} }[/tex]

[tex]65 = \frac{(9) (10^{9}) (2q_b^{2} ) )}{0.2^{2} }[/tex]

[tex]q_b[/tex] = 1.2 × [tex]10^{-5}[/tex] C

[tex]q_a[/tex] = 2 × [tex]q_b[/tex]

[tex]q_a[/tex] = 2 × 1.2 × [tex]10^{-5}[/tex]

[tex]q_a[/tex] = 2.4 × [tex]10^{-5}[/tex] C

Therefore the charge on point A is [tex]q_a[/tex] = 2.4 × [tex]10^{-5}[/tex] C

The charge on point B is [tex]q_b[/tex] = 1.2 × [tex]10^{-5}[/tex] C

Otras preguntas