2. a series circuit contains two devices, one with a resistance of 10 ohms and one with a resistance of 4 ohms. if the generator supplies a voltage of 42 v, what is the magnitude of the current?

a. 3 a
b. 1.75 a
c. 2 a
d. 1.33 a
3. when all parts of a circuit are composed of conducting materials, the circuit is said to be

a. parallel.
b. closed.
c. open.
d. shorted
4. suppose you have two magnets. magnet a doesn't have its poles labeled, but magnet b does have a clearly labeled north and south pole. if these two are brought into contact with one another, which of the following could you expect?

a. the side of magnet a that's repelled by magnet b's north pole must be magnet a's south pole.
b. the side of magnet a that's attracted to magnet b's south pole must be magnet a's north pole.
c. the side of magnet a that's repelled by magnet b's south pole must be magnet a's north pole.
d. the side of magnet a that's attracted to magnet b's north pole must be magnet a's north pole