16. Which statement regarding Ohm's Law is correct?
Increasing the resistance in a circuit always decreases the potential difference across it.
When resistance increases in a circuit with a specific potential difference, then current must also increase.
If the resistance is kept constant, the potential difference changes directly with changes in current.
An electrical conductor's resistance depends on the potential difference it experiences.
17. Why does Ohm's Law hold true only at a constant temperature?
As temperature increases, the potential difference in most batteries decreases.
As temperature increases, electrical resistance in most materials decreases.
As the temperature increases, the electrical resistance in most materials increases as well.
As temperature increases the potential difference in most batteries increases as well.
18, If the voltage across a resistor doubles, the power dissipated _____.
increases by 50%
Increases four times
Also doubles
is halved