Ngaohiko hiko – ngā raruraru me ngā otinga

1. Tāutuhia te pūmanawa hiko i tētahi pūwāhi kei te 1 cm mai i tētahi utu 5.0 μC . Te pūmau Coulomb (k) = 9 x 10 ⁹ Nm ² C ⁻² , 1 μC = 10 ⁻⁶ C.

Mōhiotia:

Ko te tawhiti mai i te utu (r) = 1 cm = 1/100 m = 0.01 m = 10 ^-2 m

Utu (q) = 5.0 μ C = 5.0 x 10 ^-6 C

Pūmau Coulomb (k) = 9 x 10 ⁹ Nm ² C ⁻²

E hiahiatia ana: Pūmanawa hiko (V)

Rongoā:

Pūmanawa hiko:

Ko te pūmanawa hiko he 4.5 x ¹⁰⁶ Volts

[irp]

2. Akona Q₁ = 5.0 μC me te utu Q₂ = 6.0 μC. Te pūmau o Coulomb (k) = 9 x 10⁹ Nm²C^-2, 1 μC = 10^-6 C. Kei waenganui i ngā utu te Pūwāhi A. Tāutuhia te pūmanawa hiko i te pūwāhi A.

Mōhiotia:

Utu Q ₁ = -5.0 μ C = -5.0 x 10 ^-6 C

Ko te tawhiti o te pūwāhi A mai i Q ₁ = 10 cm = 0.1 m = 10 ^-1 m

Utu Q ₂ = 6.0 μ C = 6.0 x 10 ^-6 C

Ko te tawhiti o te pūwāhi a mai i Q ₂ = 10 cm = 0.1 m = 10 ^-1 m

Te pūmau o Coulomb (k) = 9 x 10 ⁹ Nm ² C ⁻²

E hiahiatia ana: Te pūmanawa hiko i te pūwāhi A

Rongoā:

Pūmanawa hiko 1 :

Pūmanawa hiko 2 :

Pūmanawa hiko i te pūwāhi A :

V = _V2 – _V1

V = (54 – 45) x 10 ⁴

V = 9 x 10 ⁴

[irp]

3. Akona q₁ = 5.0 μC me te utu q₂ = 6.0 µC. Te pūmau o Coulomb (k) = 9 x 10⁹ Nm²C^-2, 1 μC = 10^-6 C. Tātaitia te pūmanawa hiko i te pūwāhi A.

Mōhiotia:

Utu Q ₁ = -5.0 μ C = -5.0 x 10 ^-6 C

Ko te tawhiti o te pūwāhi A mai i Q ₁ = 40 cm = 0.4 m = 4 x 10 ^-1 m

Utu Q ₂ = 6.0 μ C = 6.0 x 10 ^-6 C

Ko te tawhiti o te pūwāhi A mai i Q ₂ = 50 cm = 0.5 m = 5 x 10 ^-1 m

Te pūmau o Coulomb (k) = 9 x 10 ⁹ Nm ² C ⁻²

E hiahiatia ana: Te pūmanawa hiko i te pūwāhi A

Rongoā:

Pūmanawa hiko 1 :

Pūmanawa hiko 2 :

Pūmanawa hiko i te pūwāhi A :

_V = _V1 + V2

V = (-11.25 + 10.8) x 10 ⁴

V = -0.45 x ¹⁰³

V = -4.5 x ¹⁰³

Ko te pūmanawa hiko i te pūwāhi A he -4.5 x 10 ³ Volts