Home Appliance Connection Type
Electrical appliances in homes are connected in parallel. This ensures each appliance receives the full mains voltage, allowing them to operate independently at their rated power.
Why Parallel Connection Works Best
- Independent Operation: Each appliance functions separately. If one appliance is switched off or fails, the others continue to work.
- Consistent Voltage: Every appliance is connected directly across the power source, receiving the standard household voltage (e.g., 120V or 230V).
- Safety and Control: This setup allows for individual switches and circuit breakers for each appliance or circuit, enhancing safety and control.
Why Series Connection is Unsuitable
Connecting appliances in series is impractical for home use:
- Voltage Division: The total voltage would be divided among the appliances, meaning each would receive less than the required voltage, potentially causing them not to function correctly.
- Interdependence: If one appliance fails or is switched off, the entire circuit breaks, and all other appliances in the series would stop working.
Therefore, the standard and most effective way to connect household electrical appliances is in parallel.
Important Questions from Series and Parallel Connection of Resistance
How much resistance must be connected in parallel with a 360 Ω resistor to obtain an equivalent resistance Req of 120 Ω?
If n identical resistance, each of resistance R, are connected in parallel, the equivalent resistance is:
- What is the value of equivalent resistance if the resistor 10 Ω is parallel to 20 Ω?
Three resisters of 3 ohm, 10 ohm and 15 ohm are connected in parallel in a 30 V circuit. The current will that flow through the 3-ohm resistor is:
For the figure shown below, find the value of conductance 'G' (in S).
