Electric Circuits Answers

One charge of 2C is 1.5meters away from a -3C charge. Determine the force exerted on each other.

A -6 micro coulomb charge exerts an attractive force of 65N on a second charge that is 5cm away.What is the magnitude of the second charge?

A test charge of positive 2 micro-Coulomb is placed halfway between a charge of positive 6 microCoulomb and another positive 4 micro-Coulomb separated by 10 centimeter.

a. What is the magnitude of the force on the test charge?

b. What is the direction of this force (away from or toward the positive 6 micro-Coulomb 

If a conductor with a current of 200 mA passing through it converts 40 J of electrical energy into heat in 30 s, what is the potential drop across the conductor?

Laboratory report on determination of unknown resistance by potentialmeter

Determination of unknown resistance by potentialmeter experiment

A +40uC charged is placed at the origin. Calculate the magnitude and direction of the field created by the point charged at the following A point (5m,0) B. (3m,4m)

 If two charges are fixed such that the distance r between them does not change, but the charge q₁ is decreased by half, what is the new force?

two charges are not changed but they are moved twice farther than the original distance r, what becomes of the new electric force?

Two charges q and Q are separated by a distance R. If both charges are doubled to 2q and 2Q but the distance R remains the same, the new electric force is _____ the old force.

The series combination of five cells, each electromotive force of 1.5 V and internal resistance of 0.5Ω, is connected to an external resistance of 5.0 Ω. Find the (a) total internal resistance, (b) electromotive force of the battery, (c) total resistance of the circuit, (d) current through the external circuit, (e) terminal voltage of the battery, and (f) terminal voltage of a cell.

A galvanometer with a resistance of 15.0Ω gives a full-scale reading for current of 3.0 A. What shunt resistance is needed to convert this into an ammeter with a 30.0 A full-scale reading?