These are the answers I have. I don\'t think you can use a letter more than once

Question

These are the answers I have. I don't think you can use a letter more than once.

A. positive charge
B. negative charge
C. battery
D. semiconductor
E. Ohm's Law
F. electric field
G. Coulomb's Law
H. conductor
I. insulator
J. parallel circuit
K. electromagnet
L. Coulomb
M. transformer

1.___(A)___ A quantity of electric charge
2.___(E)___ The relationship among the variables, current, voltage, and resistance.
3.___(M)___ A device that changes AC current at one voltage into AC current at a different voltage
4.___(I)___ A device that greatly limits or even restricts current flow
5.___(F)___ The electric force per unit of positive charge; the property of space surrounding a distribution of electric charge
6.___(B)___ The charge on the electron
7.___(C)___ Cell that produces electricity by chemical reactions between materials separated by a chemical solution
8.___(L)___ Unit of electric charge
9.___(D)___ A substance with properties intermediate between electrical insulators and conductors
10.___(G)__ F = Kq1q2/r^2

Explanation / Answer

The answers are right on: 1.) An electric charge is either positive or negative. 2.) Ohm's law is given by : E = IR, where E is the potential difference, I is the current and R is the resistance. 3.) A transformer has the following properties: Assuming N1 turns in the primary side and N2 turns in the secondary side: (I1)(N1) = (I2)(N2) and (V1)/N1 = V2/N2 Where 1 is for the current and voltage in the primary side and 2 indicates voltage and current on the secondary side 4. Insulators tend to hold on firmly to their electrons, i.e. electrons do not move as freely, which means that the flow of electron is limited. 5. F = Eq, F is force in Newton, E is the electric field, q is the charge. E = F/q, this tells you that the electric field can be interpreted as the force per unit charge. 6. electron has the charge of : -1.60x10^-19 C 7. A battery converts chemical energy to electrical energy. Potential difference is created by the separation of charges. 8. the unit of the electric charge is the Coulomb 9. A semiconductor somewhat lets its electron roam, but not as freely as a conductor. 10. Speaks for itself, Coulomb's law states that the Force exerted by one charge on the other(vice versa) is proportional to the product of the charges and inversely proportional to the distance squared between the charges.

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