The best material to connect a power source to a light bulb is one that attracts positively charged particles. can accept the flow of neutrons. has a high resistance to negative flow. will allow electrons to flow freely.

The softest and hardest minerals are: softest hardest

The least penetrating form of radiation is

(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?