Chapter 5 Flashcards
What is charge?
Charge is a property of matter that causes it to experience a force to other charged matter.
What is an electric field?
Electric field is the electrostatic force on a stationary particle of unit charge 1 C.
Electric Field lines of one positive charge and one negative charge?
Electric field lines of 2 positive (or negative) charges?
What is voltage?
Voltage is the difference in electric potential energy of a charge that moves in an electric field per unit charge
What is an electronvolt?
Electronvolt (eV) is the amount of work needed to change the electric potential of an electron by 1 V.
What is current?
Current is the amount of charge that flows per unit time.
Kirchhoff’s loop law
Kirchhoffs’ Junction law
Adding resistors in series
Adding resistors in parrallel
What is an ammeter and where is it placed?
What is a voltmeter and where is it placed?
Why does power dissapation occur?
If current is flowing through an element with resistance, this causes the element to heat up. This means some energy is lost to heat. The rate at which energy is dissipated is the power dissipation:
What is terminal voltage and how does it differ over time?
V/I Graph of a variable resistor in relation to internal resistance?
What is a curved V/I diagram?
How do primary cells differ from secondary cells?
A secondary cell or battery can be recharged after use by passing current through the circuit in opposite direction to the current during the discharge. Wheras a primary cell cannot.
What does ⊙ mean?
Current flowing towards you
What does ⊗ mean?
Current flowing away from you
What does . mean?
Field flowing towards you
What does X mean?
Field flowing away from you
What is the right hand rule (all inclusive)?
Force of a charge moving parrallel to a magnetic field?
When a charge moves parallel to a magnetic field, the angle θ is zero and therefore the magnetic force is zero. The force is thus at its maximum when the wire or charge is perpendicular to the magnetic field.
Movement of a charged particle in a magnetic field
