A hydrogen atom consists of a single proton and a single electron. If the distance between the proton and the electron were doubled, the electric force would be
1) 1/4 as much,
2) 1/2 as much,
3) twice as much,
4) not enough information to say,
and if instead the distance between the electron and proton were halved, the electric force would be
5) 1/4 as much.
6) 1/2 as much.
7) twice as much.
8) four times as much.
9) not enough information to say
Question 2
Ohm's law tells us that the amount of current produced in a circuit is
1) directly proportional to voltage.
2) inversely proportional to resistance.
3) both of these
which means that current in a conductor can be increased by
4) increasing the voltage across it.
5) reducing its resistance.
6) both of these
D) none of the above