1. which type of wire would be a better conductor of an electrical current?
a. short, fat, cold wire
b. long, thin, warm wire

2. as the collisions between electrons and protons increase, the electrical current will
a. increase
b. decrease

3. which change will cause an increase in the resistance of conductivity?
a. changing from a long wire to a shorter wire.
b. sunlight heating up a wire.
c. exchanging a thin wire for a much thicker wire.

for the ! < 3