In multiwire circuits, the grounded conductor is also called
a . a) Neutral conductor
b) Hot conductor
c) Grounding conductor
d) Phase conductor
The Correct Answer and Explanation is:
The correct answer is a) Neutral conductor.
In multiwire circuits, the grounded conductor is often referred to as the neutral conductor. This conductor serves a critical role in the functioning of the electrical circuit by completing the return path for electric current and allowing for the safe and balanced distribution of electrical power.
Role of the Neutral Conductor:
In a typical electrical system, electricity flows in a loop or circuit. The hot conductor (which carries the live current) delivers electricity to appliances and devices. After the electrical energy is used, it needs a return path to complete the circuit and return to the source. This return path is provided by the neutral conductor. The neutral wire is grounded at the main electrical panel, which is why it is sometimes called the grounded conductor.
Grounding and Safety:
The neutral conductor is grounded for safety reasons. Grounding stabilizes the voltage levels in the electrical system and reduces the risk of electrical shock. It also ensures that, in the event of a short circuit, the current has a low-resistance path to the earth, which helps trip the circuit breaker and protect both people and electrical equipment from harm.
Differentiating from Other Conductors:
- Hot conductor: This is also known as the phase conductor and carries the active current from the power source to the load (e.g., an appliance). It is not grounded.
- Grounding conductor: This wire provides a direct connection to the earth and does not normally carry current unless there is a fault in the system. It’s a safety feature to protect against electric shock.
In summary, the neutral conductor plays a crucial role in completing the electrical circuit and ensuring safe and efficient operation of multiwire circuits.