What is resistance? What is the symbol and unit? How does it change with the characteristics of the wire (resistivity, length, and area) and temperature?
Question 7
7.
Question 8
8.
Question 9
9.
Question 10
10.
What is a capacitor? What does it do?
Question 11
11.
Compare alternating and direct current.
What feature of the atom is the foundation of electricity
Protons
Neutrons
Nucleus
Electrons
Electron shell
Valence electrons
What 3 things are required for current to cause the LED light to light up?
Closed loop
Open loop
Voltage (battery, energy source)
Conductor (wires, metal)
Insulator
Multimeter
CURRENT passing through a coil causes a MAGNETIC FIELD.
True
False
Passing a MAGNETIC FIELD through a coil will induce a VOLTAGE and CURRENT.
True
False
A transformer will induce voltage into a second coil when DIRECT current is used.