A test charge of +4 uC is placed halfway between a charge of +6 uC and...

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A test charge of +4 uC is placed halfway between a charge of +6 uC and another of +5 uC separated by 18 cm. What is the magnitude of the force (in N) on the test charge? QUESTION 6 To start a car engine, the car battery moves 8.47 x 10 efectrons through the starter motor. How coulombs of charge were moved? (Enter the magnitude only). many

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Answer 1

Answer #1

Let

$q_1 = +6 imes 10^{-6}C,q_2 = +5 imes 10^{-6}C$

Test charge g +4 × 10-6C

Distance between q₁ and q₂ = 18cm or 0.18m

Coulomb's force between two charges is given by

Kq1q2

Now,

The force between q₁ and q is

9 × 1046 × 10-0)(4 x 10-0) 0.09)2

F1 = 26.67N Replusive force (Towards right direction)

similarly

10-6) 10-6)(5 0.09)2 9 109(4

which gives us

F22.22N Towards left side

Therefore the net force is

$F_{Net} = F_1 - F_2$

FNet = 26.67-22.22

Pyet 4.45N Towards Right side or away from charge q₁

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Answer 2

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