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two electric charges with the opposite sign attract. like lovers

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the Si unit for the electric charge is the "C" or coulombs.

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an important difference  between gravitational and electric force is that the gravitantional force is always pulling you in.

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the electric force between two charged spheres is 32n, what will be the magnitude of  the force  if the  size of each charis double and the distance between them is double

This would lead to the overall answer being doubled as well since everything leading up to it is doubled.

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A positive charge od 1E-8 C  and a negative charge pff -1E-8 are 0.24m apart, what is the attractive force between the particles?

Using Coulombs law, answering this would be easy but there is different set ups of the equations so be weary.

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a negative charge of -1.5E-6 C exerts an attractive  force of 55N on a second  charge on 0.040m away what is the magnitude of the second charge ?

Coulombs law again should be used here as in the previous one, but the equation can change ].

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a lamp is connected to a battery of 400v and the current that flows through the circuit is 4A the resistance of the lamp is?

Using R=V/A easier type of question.

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the current through a resistor is 4 C is 10A the voltage drop across the resistor is?

Using Vt=IxR wouldgive the voltage drop

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which term best describes the kind of circuit pictured?

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If each resistor is 23, solve for the Req?

Using the pic above,  use Rt=1/R1+1/R2+1/R3

but put them over 1, then find the reciprocal.

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the total resistance in  the circuit is?
The Total Voltage is 10V
Each  resistor is 20 C
Rt=R1+R2+R3

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the total current in the circuit is?
Use the above, use the Vt and put it over the Rt, Which is 20, that gives the current (A)