21. If the voltage increases, the resistance decreases.

A.
False

B.
True
22. Parallel circuit has only one-single path for the current to flow.

A.
False

B.
True
23. Circuit breaker serves as a sacrificial device to the circuit.

A.
False

B.
True
24. Safety devices are connected to electrical circuits to prevent fire.

A.
False

B.
True
25. The currents in a series circuit are equal.

A.
False

B.
True