Question

In homes, electrical devices are connected in

• A. series
• B. parallel
• C. both series and parallel
• D. none of these

Answer 1

The correct option is B

parallel

Explanation for correct option - (B) parallel

1. In this type of combination, one end of the first resistor is connected with the one end of other resistors and the second end of the first resistor is connected to the second end of other resistors.
2. In such a connection, the amount of electrical current flowing through each resistor is different when the resistors are different.
3. The potential difference across the ends of each resistor is the same.
4. So if any of the resistors are removed or added to the circuit it will not affect the functioning of the other resistors.
5. Therefore, in homes, electrical devices are connected in parallel so that switching on or off any device does not affect the functioning of the other devices.
6. Also, all the devices can have a separate switch so that they can be easily operatable.
7. All the devices will have the same voltage so that they all can work properly.
8. The magnitude of resistance decreases in such a combination so the power supply is high and the heat generated in the circuit is less.

Explanation for incorrect options - (A) series

In such a connection, the potential difference across the ends of each resistor is different. Therefore, all the devices will get different voltages and will not work properly.

(C) both in series and parallel

Because of the series combination, the devices will not work properly.

(D) none of these

Since option (B) is correct, this option is not correct.

Hence, option (B) is correct.