Electric Charges
The subatomic particle that has a negative charge
What is an electron?
Unit for Coulomb's Law electrostatic force
What is Newtons (N)?
The two types of circuits
What are series and parallel?
Difference between conductors and insulators
What is conductors allows charges to move freely and insulators do not allow charges to move freely?
What is the voltage of a circuit with a current of 3 A and a resistance of 15 ohms?
What is 45 volts?
How does an object become charged?
What is it picks up or loses electrons?
Definition of Coulomb's Law
What is a measure of the electrostatic attraction between two objects with charges?
What is Ohm's Law?
What is V = I * R?
Examples of insulators
Rubber, glass, dry wood, diamonds, oil, etc
Parallel circuit with resistors of 5 ohms, 20 ohms, and 10 ohms. What is the total resistance?
What is 2.86 ohms?
What happens when an atom has more protons than electrons?
What is a positive charge?
Coulomb's Constant
What is 8.99 x 109 Nm2/C2?
In a series circuit, current is:
What is always equal?
What happens when a charge is introduced to a system (goes from positive to negative)?
What is an electric field?
Electrostatic force of two objects 0.5 m apart with one charge of -4e-6 C and another of 6e-6 C
What is -0.863 N?
Charges of electron and proton
What is -1.6 * 10-19 (electron) and 1.6 * 10-19 (proton)?
What is the squared distance between objects?
Difference between series and parallel circuits
What is series has resistors one after the other and parallel has resistors in independent branches?
What is the rate at which charge flows through a conductor?
Electrostatic force of two objects 4 cm apart equals 60 N. What is the charge of object 2 when the charge of object 1 is 4.3 * 10^-6 C?
What is 2.48 * 10^-6 C?
The Law of Conservation of Charge states:
What is the amount of subatomic particles in a system must stay constant
How to tell if two objects attract or repel
What is negative electrostatic force means attraction and positive electrostatic force means repulsion?
The total resistance of a parallel circuit can be found with the equation:
1/Rtotal = 1/R1 + 1/R2 + 1/R3...
Induction definition
What is the process of charging a conductor by bringing another charged object near it (which grounds the conductor)?
Parallel circuit with 3 resistors (30 ohms, 20 ohms, 10 ohms) and total current of 10 A: solve for all voltages, current at each resistors, and total resistance (hint: draw the circuit).
Vtotal = V1 = V2 = V3 = 54.55 v
I1 = 1.82 A, I2 = 2.73 A, I3 = 5.45 A
Rtotal = 5.45 ohms