An electrical device that is designed to start and stop currents flow is the:
a. Power supply
b. Fuse
c. Circuit breaker
d. Switch
e. Resistor
Answer: D
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Power Engineering Chapter 78
- What is the composition of an atom?
- A conductor's resistance is
- Under normal circumstances, the heat produced by the electrical wires of a circuit is very small due to the
- Most conductors tend to
- A conductor's resistance is
- Current flow is inversely proportional to the
- Current flow is
- Equivalent resistance is decreased
- In an equivalent circuit developed from a multi-resistor series circuit
- A material that conducts electrical current is called
- Since the discovery of electrons, it has been determined that electrons are a negative charge and flow from
- The flow of electrons in a uniform direction is called
- When a number of electrons pass a given point over a specific time period the energy may be referred to as
- In an atom the electrons
- An open circuit is one in which:
- If the power dissipated by a resistor is 1.2 kW when supplied with 110 V, the amperage will be _____ A.
- A basic law of electricity is, unlike charge attract each other and like charges:
- Electrons are negatively charged particles:
- Three resistances of 20, 50 and 80 O make up a series circuit. The supply voltage is 400 V. The current flowing would be:
- If an electrical _____ is placed across a conductor, the electrons will drift from the negative end towards the positive end of the conductor.
- A material that conducts electrical current is called:
- The unit for opposition to current flow is the:
- The equivalent resistance of three resistances of 10, 25 and 50 O connected in parallel is _____ O.
- The voltage drop across a 20 O resistor with 10 A flowing would be _____ V.